INDEX OF SUBJECTS.Abietic acid, dehydrogenation of, 298,Absorption, infra-red. See underSpectra.Absorption density, measurement of,457.Acetal, hydrolysis of, in deuteriumoxide, 102.Acetic acid, lead tetra-salt, use of, insugar group reactions, 247.silver uranyl salt, crystal structureof, 197.Acetic acid, chloro-, hydrolysis of,in deuterium oxide, 102.esters, hydrolysis of aqueoussolutions of, 97.Acetobromoglucose, 251.action of, on 4 : 6-benzylidene-a-methylglucoside, 256.Acetone, determination of, 468.Ace tophenones, o - hydroxy -, fixationof double bonds in, 284.Acetyl groups, determination of, 468.Acetylene, molecular orbital of, 43.Acids, from naphthalenes a.nd tetra-lins, synthesis of, 326.Aconitic acid, detection of, 467.Aconitine, 376.Aconit oline, 37 6.Acraldehyde, addition of, to cyclo-Acriquine in malaria therapy, 406.Acrylic acid, addition of, to cydo-Actiniasterol, 353.Adenosine, absorption spectrum of,Adhatoda vasica, Z-peganine from, 370.Adrenal cortex, hormones of, 395.Adrenos t erone, 359.B-Adrenosterone, 395.2EtioaZZobilianic acid, 365.Agar, galactose from hydrolysis of,Aglycones, cardiac, 362.Alantolactone, degradation of, 303.Alcohols, aromatic, cyclo-dehydrationolefinic, cyclo-dehydration of, 316.unsaturated, cyclo-dehydration of,309.structure of, 268.oxidation of, 92.unsaturated, lactonisation of, 327.pentadiene, 94, 240.pentadiene, 240.253.251.of, 318.315.Aldehydes, detection of, 465.Aldehydo-d-mannose pentaacetate,Aldehydo-sugars, 250.Algze, sterols of, 346.Aliphatic compounds, structure of,Alkali azides, decomposition of, 93.borofluorides, structure of, 211.perchlorates, structure of, 211.halides, super-lattices in mixedcrystals of, 209.containing sterol ring system, 367.detection of, 468.lysis of, 96.ation of, 308.250.benzoyl derivatives, 252.218.Alkaloids, 370.Alkyl hydrogen sulphates, hydro-Allyl-A l-cycbhexene, dehydrogen-Alums, 194.Aluminium, determination of, 463.determination and separation of,lattice constants of, 202.Aluminium carbide, structure of, 156.Amides, optically active, rates ofAmines, detection of, 466.Amino-acids from nodular proteins,441, 442.racemisation of, 236.415.from protein hydrolysates, 399.sulphur -cont aining, 402.Ammonia, exchanw of deuteriumwith hydrogenbh, 92.production of, by Azotobacter, 408.Ammonium, detection of, 455.Ammonium azide, structure of, 210.bromide, crystallography of trans-chlorobromoiodide, structure of,hexanitratocerate as standard information of, 209.210.ceriometry, 434.94.Ammoresinol, 278.tert.-Amy1 chloride, decomposition of,Analysis, reagents for, 436.colorimetric, 456, 459, 467.instruments for, 457.organic, 467.inorganic, 433.qualitative, 448.quantitative, 433.magneto-optical, 432.nephelometric, 460.49INDEX OF SUBJECTS. 497Analysis, organic, 465.apparatus for, 468.qualitative, 465.quantitative, 466.volumetric, 433.Anawite, crystal structure of, 206.da : 6-Androstadien-17-one, 360.Androstene-3 : 17-dione, preparationd 5-Androsten-17-ol-3-one, 344.Aneurin, synthesis of, 381.5 : 6-Anhydroglucose 1 : 2-acetone,Aniline hydrochloride, equilibriuma- and fl-Anisaldoximes, equilibriumAnisotropy, diamagnetic, of aromaticAnthracene, hydrogenation of, 315.Antimony, detection of, 449.of, 357.249.of, with deuterium oxide, 293.of, 232.molecules, 5 1.structure of, 290.determination of, 438.determination and separation of,440.Antimony oxides, and their hydrates,crystal structure of, 209.Antimonates, structure of, 212.Antirachitic substances, 3 90.Antiseptics, 407.1-Arctigenin, 272.Arctium lappa, Z-arctigenin in seedsof, 272.Argon, bombardment of, withdeuterons, 23.Aromatic compounds, 279.Arsacetin, 403.Arsenic, determination and separa-tervalent, stereochemistry of, 237.Arsenicals, 403.Arundo donas, donaxine from, 380.l-Asarinin, 277.Asarum sieboldii, 1-asarinin from,Ascorbic acid, synthesis of, in w h o ,Asymmetric synthesis, 234.Atebrin, and its musonate, in malariatherapy, 405.Atoms, action of, with solid surfaces,47.determination of distances be-tween, from electron diffraction,70, 74.Atomic weights, 135.calculation of, from energy changesin nuclear transformations, 142.d-Atrolactic acid, replacement ofhydrogen by deuterium in, 229.bicyclo-[1 : 2 : 2]-Azaheptene, 237.Azides, structure of, 210.tion of, 440.277.387.urinary excretion of, 388.Azomethane, decomposition of, 93.Azotobacter, 408.w-Azotoluene, decomposition of, 94.structure of, 81.Bacillus dysente.lim, polysaccharideBacteria, metabolism and activity of,Barium, determination of, 444.Barium cadmi-bromide and -chloridetetrahydrates, structure of, 214.Eatyl alcohol, structure of, fromsurface films, 116.Benzaldehyde, o-nitro-, condensationof, with glycosides and sugars,249.a- and p-Benzaldoximes, 2 : 6-di-chloro -3-nitro-, equilibrium of,231.Benzene, diamagnetic susceptibilityof, 52.dipole moment of, in nitrobenzene,134.exchange of hydrogen for deuteriumin, 291.oxidation of, 93.structure of, 58, 83, 279.Benzene, bromo-, dipole moment of,in non-polar solvents, 125.chloro-, polarisation of, in varioussolvents, 118.Benzenesulphonamide, p-amino-,antiseptic action of, 407.BBnzidine, detection of, in presenceof tolidine, 468.Benz-1 : 3 : 3-bicycZo-d2-nonene, 325.Benzoic acid, sodium mlt, bromin-ation of, 287.Benzoinoxime, co-ordination com-pounds of, with metals, 167.Benzonitrile, dipole moment of, innon-polar solvents, 125.Benzonitrile, o-hydroxy-, structureof, 285.Benzophenone oximes, 2-hydroxy-,and their acetates, configurationof, 286.Benzopurpurin-B and -4B as indica-tors, 435.Benzpyrene, hydroxy-, 297.1 : 2-Benzpyrene, synthesis of, 339.2-Benzyldecalin, dehydrogenation of,307.1 -Benzylcyclohexanol, dehydration of,325.Bemylideneazine, decomposition of,94.4 : 6-Benzylidene-a-methylglucoside,action of acetobromoglucoseon, 256.from, 265.408.isotopes, 16498 INDEX OF SUBJECTS.Benzylmenthol, cyclisation of, 319.2 -Benz yl- tram-oc t a h ,ation of, 300.Berberine, detection of, 468.Berlin blue, structure of, 213.Berthierite, crystal structure of, 208.Beryllium, bombardment of, by deu-dehydrogen-terons, 21.by neutrons, 25.by y-rays, 26.detection of, 465.lattice constants of, 202.nucleus, mass of, 22.parachor of, in co-ordination com-Beryllium carbide, structure of, 156.dl-Bicuculline, synthesis of, 380.Bile, shark’s, scymnol from, 355.toad’s, trihydroxybufosterochol-enic acid from, 355.Bile acids, 353.dehydrogenation of, 303.Bilianic acids, 345.Biochemistry, 383.animal, 384.plant, 408.a-Bisabolol, 316.Bismuth, detection of, 453, 454.determination of, 438.determination and separation of,formation of radium-E from, 23.Bismuthials in syphilis therapy, 404.Bisnorcholanic acid, 3 : 7 : 12-tri-hydroxy-, 355.Black tongue in dogs, 385.Bond distances, 74.n- and iso-Borneols, relationship of,Boron, allotropy of, 203.bombardment of, by deuterons, 21.by neutrons, 24.by protons, 20.determination of, 447.fluoride dihydrate, structure of,pounds, 165.438.241.Boron amide, structure of, 83.Bromates. See under Bromine.Bromides.See under Bromine.Bromine, determination of, inpresence of iodine, 447.interatomic distance in, 74.kinetics of reaction of, withhydrogen, 89.Bromides, detection of, 462.determination of, 447.Brornates, detection of, 452.determination of, 447.Bruoine in sulphuric acid as indicator,435.Buckwheat plants, effect of artificiallight sources on dry matterproduction in, 418.210.Bufosterocholenic acid, trihydroxy-,from bile of toads, 355.Bufotalin, structure of, 364.Burdock.See Arctiurn Eappa.tert.-Butyl chloride, decomposition of,94.1.1-Butylcyclopentane, hydrogenationof. 311.Butyric acid, a-amino-/?-hydroxy-,growth-promoting action of, 401.“ BYSSUS,” structure of, 226.Cadalene, 295, 298.Cadmium, at. wt. of, 142.detection of, 450, 455.isotopes, 17.lattice constants of, 202.Cadmium halides and oxides, 193.sulphate hydrate, structure of, 211.Calciferol, 349.antirachitic value of, 391.structure of, 390.Calcium, allotropy of, 203.detection of, 451.,determination of, 444.Calcium sulphate hydrates, structureCamphor, determination of, 467.Camphoric acid, bismuth ethyl ester,in syphilis therapy, 406.Canaline, 400.Canavanine, 400.Carane, dehydrogenation of, 309.Carbamide, detection of, 467.Carbazides, detection of, 467.Carbides, structure of, 153.Carbohydrates, 245.Carbon, at. wt. of, 144.of, 212.bombardment of, by deuterons, 21.bonds, single, double, and treble,determination of, in organic com-gaseous, 190.valency angles of, 84.valency states of, 43.bital of, 43.fluorides, 149.suboxide, structure of, 81.dioxide, determination of, 448.distances of, 79.pounds, 465.Carbon tetrachloride, molecular or-isosteres of, and their properties,43.Carbon-bromine distance, 75.Carbon-chlorine distance, 75.Carbon-fluorine distance, 77.Carbon-iodinq distance, 76.Carbon-nitrogen distance, 80.Carbon-oxygen distance, 80.Carbonyl chloride, carbon-chlorineCarbonyls, metallic, 176.bond in, 46INDEX OP2 -0-car box ybenz ylindan- 1 -one, brom-ination and racemisation of, 233.Carpesterol, 379.Catalysts, dehydrogenation, 294.Catalytic dehydrogenation, 294.with metals, 305.with selenium, 299.with sulphur, 295.Catechol.Bee Pyrocatechol.Cellobiose oxime nonuacetate andsemicarbazoiie, structure of, 261.Cellulose, cotton and wood, 260.derivatives, films of, 116.nitration of, 226.structure of, 225.structure and particle weights of,Central force field, 61.Cerium, detection of, 455.258.isotopes, 16.magnetic susceptibility of, 181.separation of, 181.Getylpyridinium bromide, conductiv-Cevanthridine, 3 77.Cevanthrol, 377.Chelate compounds, 283.Chemotherapy, 403.Chenodeoxycholic acid, 353.Cherry, w-inter.See Solanum peudo-Chicks, deficiency disease in, due t oChitin, structure of, 225.Chlamydomonas, effect of temperatureon respiration and assimilationin, 418.Chlorates. See under Chlorine.Chiorella pyrenoidom, effect of ultra-violet light on photosynthesis in,418.Chlorine, at. wt. of, 139.interatomic distance in, 74.structure of, 217.Chlorine dioxide, structure of, 79.Hydrochloric acid, exohnge ofdeuterium with hydrogen in, 92.Chloratcs, determination of, 447.Perchloric acid as oxidising agentfor chromium, 442.Chlorophyll, chemistry of, 420.condition of, in plants, 427.effect of nutrition on formation of,in plants, 428.formula for, 422.Chlorophyll-a and -b, 421.“ Chloroplastin,” 428.Cholanthrene, preparation of, 332.synthesis of, 339.Cholera vibrio, polysaccharide from,Cholestenols, 352.d4- and A 5-Cholestenones, 344.ity curve of, 105.capmum.lack of vitamin-K, 394.265.SUBJECTS.499Cholesterol, dehydrogenation of, 305,irradiated, antirachitic value of,isomerides of, 341.309.391.p-Cholesterol, 343.alloCholes terol, 342.epiCholestero1, 342.epialZoCholestero1, 342.Cholic acid, 353.dehydrogenation of, 302.a- and ,!3-apoCholic acids, 348.Chromium, determination and separa-Chromium hemcarbonyl, 176.Dichromates, detection of, 455.Chrysene, from sterols, 302.synthesis of, 324.Chrysenes, dime syntheses with, 329.Chrysofluorene, 323.Chymotrypsinogen, structure of, 226.Cinobufagin, structure of, 364.Citergic acid, 375.Citric acid, detection of, 467.Cobalt, detection of, 450, 455.isotopes, 16.Cobalt ammines, heats oi formationand solution of, 172.chloromnm%nobisdime thylgly oxime,effect of powdered qwrtz onoptical activity of, 175.compounds, complex, rotation andconfiguration of, 173.nitrosyltricarbonyl, parachor of,166.sulphides, crystal structure of, 207.tion of, 442.d- and Z-Cocaines, detection of, 468.Co-enzyme R, 414.Colloids, 103.electrolytic, with long hydrocarbonchains, 103.Colorimeters, 457.Colorimetric analysis, organic, 467.photometric, accuracy of, 459.quantitative, 456.Colour, measurement, of, 466.Conidendrin, 274.Co-ordination compounds, 157.complex, 213.Copaene, dehydrogenation of, 298.Copper, bombardment of, with deu-terons, 23.detection of, 454.detection and determination of,determination of, 439, 462.Copper phthalocyanine, 100.Lbpric chloride &hydrate, structurechloride &hydrate and pyridineP-diketones, 169.450.in organic3 compounds, 406.of, 213.derivative, 160500 INDEX OF SUBJECTS.Copper :-Cuprous iodide, co-ordination com-pounds of, with arsines andphosphines, 167.oxide, red and yellow, 291.salts, ammoniates of, 172.aelenide, sulphide, and telluride,crystal structure of, 207.Oorticosterone, 360, 396.Cortin, 359.Crotonaldehyde, addition of, to cydo-pentadiene, 240.trans-Crotonyl chloride, addition of,to cyclopentadiene, 240.Crystals, action of atoms and mole-cules with surfaces of, 47.molecular, 214.paramagnetism of, 51.structure analysis of, 196.structure factor tables for, 198.Crystallography, 196.Cubebin, 273.Cupressus obtusa.See Cypress,Japanese.Cupric and Cuprous compounds.See under Copper.Cyanides. See under Cyanogen.Cyanogen, structure of, 82.Cyanides, determination of, 464.Cyanuric triazide, structure of, 81, 83.Cylindrite, indium in, 195.p-Cymene from terpenes, 296.Cypress, Japanese, l-hinokinin fromhinokiol from resin of, 270.Cysteylglutamine, 397.resin of, 273.Dacrydium biforme, manool from,Dacrydium colensoi, manoyl oxideDecalin, dehydrogenation of, 307.trans-Decalin, dehydrogenation of,trans-/3-Decalone, dehydrogenation of,Dehydroandrosterone, configurationepiDehydroandrosterone, 357.7-Dehydrocholesterol, 352.irradiated, antirachitic propertiesDehydroneoergosterol, preparationDehydrogenation, 2 9 4.Dehydrolumisterol, 349.7-Dehydrositosterol, irradiated, anti-7-Dehydrostigmasterol, irradiated,dLDemethoxymatteucino1, resolution269.from, 269.300.305.of, 356.of, 390.of, 312.rachitic value of, 392.antirachitic properties of, 391.of, 231.Dermatitis, in chickens and in rats,385.Deuterium (heawy hydrogen) atoms,exchange of, with hydrogenatoms, 92, 99.bombardment of, by y-rays, 26." labelling " molecules by intro-duction of, 354.proportion of, in hydrogen, 144.reactions with, in solution, 98.Deuterium compounds, aromatic, 291.oxide (heawy water), exchange re-actions of, with polyphenols,293.ionic product of, 99.kinetics of reactions in, 100.Deut ero -compounds, s tereochemis tryof, 228.Deuterolysis, 98.Deuterons, bombardment of nucleiby, 20.Diacetylene, structure of, 82.2 : 4- and 4 : 6-Diacetylresorcinols,structure and properties of, 283.Dialk y lnaphthalenes , dihydroxy - ,properties and configuration of,288.Diamino-acids from proteins, adsorp-tion of, by Japanese acid clay,466.Diazoacetic acid, ethyl ester, effectof deuterium oxide on decom-positionof, 101.hydrogen-ion catalysis of, 97.Diazomethane, structure of, 81.Dibenzanthracene, crystal structureof, 223.Dibenzoylkojic acid, 253.Diborane, molecular orbitals in, 43.Dicarbon, 190.Dichromates. See under Chromium.Dickite, crystal structure of, 206.Dicyclic compounds, synthepis of,from olefins, 316.Dienes, condensation of, with quin-ones, 328.heats of hydrogenation of, and ofbenzene, 280.syntheses with, 328.Diethylbromogold, 169.1 : 2-Diethylcyclohexene, dehydrogen-ation of, 303.Digitalis purpurea, saponins from,365.Digitogenin, 365.Digoxigenin, 362.22-Dihydroergosterol, irradiation of,352.irradiated, antirachitic value of,392.a-Dihydrofucosterol, identity of, withsitosterol of wheat germ oil, 345.structure of, 365INDEX OF SUBJECTS.501a- and y-Dihydrolysergic acids, 375.Dihydronaphthalene, dehydrogen-ation of, 307.Dihydronaphthoic acids, substitutedesters, preparation of, 333.Dihydrophenanthrene - o- dicarboxylicanhydrides, 333.42 : 6-Dihydroterephthalic acid, di-met h y 1 ester , dehydrogenationof, 307.Dihydrotheelin. See CEstradiol.1 : 3-Diketodecalin, preparation of,Diketohexahydrochrysenes, 337.Diketones, cyclo-dehydration of, 333.1 : 5-Diketones, cyclisation of, 333.( - )ay-Dimethylallyl alcohol, asym-metric synthesis with, 234.6 : 6’-Dimethyldiphenyl, 2 : 2’-di-amino-, racemisation of, 94.1 : 2-Dimethylphenanthrene, syn-thesis of, 338.6 : 7-Dime thyl-9-d-riboflavin- 5’-phos-phoric acid, 386.Dicyclopentyl, dehydrogenation of,310.Diphenic acids, reduced, pyrolysis of,341.Diphenyl, 2 : 2‘- and 3 : 3’-dichloro-,electric moments of, 237.Diphcnyl-2-acetic acid, cyclo-dehydr-ation of, 339.Diphenylbenzidinesulphonic acid,sodium salt, as oxidation-reduc-tion indicator, 435.Diphenylcarbazide as indicator, 435.Diphenyldinaphthylallene, resolutionof, 230.as-Diphenylethylene, polymerides of,319.Dipole moments, influence of sol-vents on, 117, 132.measurement of, in polar solvents,134.Di-n-propylbromogold, 169.Dipyridine iodine nitrate, 170.Dipyridinobenzenes, reduced, 369.Disaccharides, 245.Diterpenes, 267.Di-o-tolyl, dehydrogenation of, 299.o-Divinylbenzene, properties andDivinyl ether, decomposition of, 93.Djenkolic acid, 402.Dodecahydrobenzanthracene, de-hydrogenation of, 301.Dodecahydrochrysene, dehydrogen-ation of, 296, 301.Dodecahydrophenanthrone, 335.Donaxine, 380.Dwema ammoniacum, ammoresholfrom, 278.Drop reactions, 453.331.structure of, 289.Earth, rare-earth elements in crust ofthe, 178.Earths, rare, 178.colours of salts of, 182.separation of, 179.strength of, as bases, 182.Eka-osmium, formation of, 26.Electrons, diffraction of, 65.analytic interpretation of, 72.radial distribution method ofexamination of, 73.Elements, isotopes of, 15.Equation, Debye, modifications of,126.Equilenin, 360.Equilin, 360.isoErgine, 375.Ergobasine, 375.Ergoclavinc, structure of, 374.Ergomonamine, 375.Ergometrine, 375.Ergometrinine, structure of, 374.Ergosinine, 374.Ergostane-3 : 6-dione, 347.Ergostanetriol, 347.Ergostenedione, 347.a-, 8-, and y-Ergostenols, 348.Ergosterol, degradation of, 361.structure of, 346.neoErgostero1, 343.dehydrogenation of, 346.Ergostetrine, 375.Ergot alkaloids, 374.Ergotamine, 374.Ergotaminine, 374.Ergotocine, 375.Esters, hydrolysis of, 95.effect of deuterium oxide on, 101.ketonic, cyclo-dehydration of, 330.Ethane, molecular orbital of, 43.Ethane, nitro-, effect of deuteriumoxide on neutralisation of, 101.Ethyl bromide, dipole moment of, innon-polar solvents, 125.ether, decomposition of, 94.Ethylamine, decomposition of, 93.Ethylene, molecular orbital of, 43.dichloride, dipole moment of, 132.oxide, decomposition of, 93.platinous chloride, structure of, 178./3 -E t h ylgalac t o furanoside , 2 5 1,Ettringite, crystal structure of, 206.Eucalyptus oil, E-eudesmin from, 276.Eudalene, 295, 297, 327.1-Eudesmin, 276.Eudesmol, dehydrogenation of, 297.Euglena gracilis, effect of ultra-violetEuropium, separation of, 180.light on photosynthesis by, 418.Fagara xanthoxyloides, xanthotoxinfrom, 368502 INDEX OF SUBJECTS.Farnesene, 3 16.Farnesol, dehydration of, 316.Ferric salts.See under Iron.Ferricyanides, detection of, 452.Ferrocyanogeii ions, structure of, 40.Fibre structures, 224.Fibrin, blood, amino-acids from, 400.Fichtelite, dehydrogenation of, 298,309.Yicus carica, ficusin from, 368.Ficusin, 368.Films, thickness of, in relation toX-ray broadening, 201.transference of, from water surfacesto golids, 117.unimolecular, 112.Flavanone, 7-hydroxy-, resolution of,Flavine, structure of, 254.Fluorene, formation of, by dehydro-genation, 31 1.structure of, 223.Fluorene, 2-bromo-, asymmetric syn-thesis with, 236.Fluorescence in relation to photo-synthesis, 425.Fluorine, at.wt. of, 144.bombardment of, by protons, 19.determination of, 446.preparation of, 145.y-rays from, 19.halides, 146.dioxide, decomposition of, 94.oxides, 147.Hydrofluoric acid, anhydrous, criti-cal temperature of, 152.Fluorides, acid, 151.Foods, anti-chicken-dermatitis factorin, 385.Force constants of molecular bonds,64.Force fields, 60.d-Fructose, synthesis of, 245.fi-Fructosediacetone, oxidation of,Fucostanol, 345.Fucosterol, 345.Furanose derivatives from galactose,251.Furtondicarboxylic acid, and its iso-propylidene derivative, 248.231.Fluorine compounds, 146.247.Galactans, 261.dl-Galactose heptaacetate, 250.Gallium, detection of, 455.determination and separation of,Gas reactions, 91.Gases, molecular structure of, fromGegenions, 104.442.electron diffraction, 65.Gelatin, amino-acids from, 399.Gentiobioss, synthesis of, 256.Geraniol, cyclisation of, 3 16.Geraniolens, cyclo-dehydration of,Germanium, at.wt. of, 136.determination of, 463.Germanium disulphide, crystal struc-ture of, 207.Gitogenin, structure of, 365.Glass, oxide, 205.Glauconite, crystal structure of, 206.Globin, structure of, 400.1 dGlucopyranosidocy tosine, 255.Glucose, determination of, 468.mutarotation of, 100.315.effect of deuterium oxide on4-phosphate, 248.reactions of, with bases, 245.Glucose, g-thio-, 249.l-P-Glucosidofructose, synthesis of,2 -/3 -Glucosido - a-glucose, 25 6.Glucosone, and its tetrabenzoyl de-6- Glucosylpiperidine, 249.Glucoxazoline, p-hydroxy-, and p-Glutaminylcysteine, 3 97.Glutathione, relation of, to ascorbicsynthesis of, 402.Glycocholic acid, 354.Glycodeoxycholic acid, 354.Glycogen, structure of, 225.Glycosides, 245.Glyoximes, copper co-ordination com-pounds with, 168.Gold, at.wt. of, 142.determination of, 438.sols, particle size of, 201.valency of, and its co-ordinationcompounds, 169.Goniometer, Weissenberg, 197.Gramine, 379.Graphite, chemistry of, 190.particle size of, 201.Guaiacunz oficinale, guaimetic acidfrom resin of, 270.Guaiaretic acid, 270.Guanine-uridylic acid, 254.Gum arabic, aldobionic acid from,255.rivative, 252.thiol-, 249.acid, 389.262.Phmoglobin, muscle, combination of,with oxygen and carbon mon-oxide, 97.Hkmoglobins, 400.Hauerite, crystal structure of, 208.Heat of hydrogenation, 380.Heliotric acid, 377.Heliotridan, and hydroxy-, 377503 INDEX OF SUBJECTS.Heliotridine, 377.Heliotrine, 377.HeZiotropium lasiocarpum, alkaloidsHelium, scattering of, by lithium andHelminthosporium, ravenelin from,Hemlock, Japanese, tsugaresinolHepta - acetylgentiobiuronic acid,Heterocyclic compounds, 367.Hexadeuterobenzene, preparation of,Raman spectrum and structure of,structure of, from spectra, 58.Hexae t hylbenzene, crys t a1 s true tureHexahydrobenzylbenzoic acids,Hexahydrochrysenes, 338.Hexahydrofluorene, dehydrogenationHexahydrohydrindene, dehydrogen-Hexahydrozingiberene, dehydro -Hexamethylbenzene, hezabromo -,cycZoHexane, dehydrogenation of,cycZoHexanone, dehydrogenation of,cycloHexenones, synthesis of, 336.Hexoxidase, 389.cycZoHexylmethylcyclopentane, de-hydrogenation of, 3 10.2-cycZoHexylnaphthalene, dehydro-genation of, 296, 300.cycZoHexylcycZopentane, dehydro-genation of, 310.dl- and Z-Hinokinins, 273.Hinokiol, 270.Hormones, 395.from, 377.sodium fluorides, 49.369.from, 274.methyl ester, 264.291.280.of, 223.cyclisation of, 339,of, 300, 307.ation of, 307.genation of, 307.crystal structure of, 223.306.297.in naphthalene, 296.nomenclature of, 360.mals, from testicular extracts, 358.cest rogenic nitrogenous, 362.sex, 356, 397.derivatives, 281.Hydrindene, configuration of, 281.Hydrindenes, bromo-, dipole momentsof, 282.Hydroaromatic compounds, poly-cyclic, synthesis of, 312.Hydrocarbons, aromatic, formationof, by cyclo-dehydrogenation ofaliphatic hydrocarbons, 3 11.Hydrochloric acid.See underChlorine.tetracyclic, synthesis of, 323.Hydrofluoric acid. See u&rHydrogen bonds, conditions for form.detection of, by spectra, 58.exchange of, with deuterium, 92.ions, determination of, 464.kinetics of reaction of, withmolecules, Heitler-London theoryHydrogen chloride.See Hydrochloricfluoride. See Hydrofluorio acidperoxide, detection of, 452.sulphide, solid, lattice constant andHydrophenanthrene derivatives, syn-Hydrophenanthrenes, diene syn-Hydroxyl groups, determination of,Hydroxylamine, detection of, 455.Hyodeoxycholic acid, 353.Hypophosphites. See under Phos-Fluorine.ation of, 285.bromine, 89.of, 38.acid under Chlorine.under Fluorine.optical properties of, 217.theses of, 327.theses in, 328.synthesis of, 319.infra-red absorption of, 285.466.phorus.Ice, structure of, 217.Imino-groups, infra-red absorptionof, 285.Immuno-polysaccharides, 261.Indicators, 434.effect of ionic micelle formationadsorption, 436.fluorescence, 435.on equilibrium point of, 110.Indigotin, isomeric change of, onfibre of dyed materials, 231.Indium, determination of, in minerals,195.Indole derivatives, 379.Inorganic analysis, qualitative, 448.quantitative, 433.Inosine, absorption spectrum of, 253.Insulin, structure of, 396.Iodates.See under Iodine.Iodides. See under Iodine.Iodine, determination of, 447.interatomic distance in, 74.Iodine nitrate, co-ordination com-pound of, with pyridine, 170.Iodides, determination of, 447. 'Iodates, determination of, 447.Periodic acid, detection of, 454.Ions, complex, acid-base propertiestherapy with, 397.of, 176.structure of, 210504 INDEX OFIonene, dehydrogenation of, 298,302.Ionisation potential, effect of mole-cular dipoles on, 42.Iridium as catalyst, 305.Iron, determination of, 463.determination and separation of,in relation t o assimilation in plants,isotopes, 16.Iron carbide, decomposition of, 156.pemtmarbonyl, parachor of, 166.dinitrosyldicarbonyl, parachor of,Ferric salts, compounds of, with441, 442.430.structure of, 165.166.o-phenanthroline, 17 3.Isatin, structure of, 221.Isomerism, geometrical, 231.Isosteres, 43.Isotopes, 15.Ivory nut, mannans in, 260.Jervine, 3 7 7.Kaempherol-Z-rhamnoside, 255.Kaolinite, crystal structure of, 206.Keratin, structure of, from variousKeratins, 400.Ket ohydrochrysenes, 335.l-Keto-7-hydroxy-1 : 2 : 3 : 4-tetra-hydrophenanthrene, synthesis of,338.3-Ketomanoyl oxide, 269.Ketones, dehydrogenation of, 297.detection of, 465.cyclic, formation of, 336, 341.Kinetics, chemical, 86.sources, 226.Lanosterol, 346.Lanthanum nitrates and selenste,Larch. See Larix decidua.Lariciresinol, 278.Larix decidua, lariciresinol from resinof, 278.Lasiocarpine, 377.Lead, detection of, 454.ation of, 453.438.183.de tee tion, determination, and separ -determination of, 461.determination and separation of,isotopes, 17.Lead compounds, stereochemistry of,monoxide, red and yellow, 192.sulphides, crystal structure of, 208.164.UBJECTS.Leaves, fluorescent substances from,426.photosynthesis in relation to chloro-phyll and water content of, 419.Lemon juice, vitamin-P from, 390.Light of varying wave-lengths, utilis-ation of, by plants, 417.ultra-violet, effect of, on photo-synthesis, 418.Lignanes, 270.Lignin, structure of, 267.Limonene, dehydrogenation of, 308.Linalool, cyclisation of, 316.Liquids, frequency of collisions in,Lithium, bombardment of, by neu-102.trons, 25.by protons, 19.isotopes, 15.y-rays from, 19.Lithium alum, preparation of, 194.isoLithobilianic acid, 345.Lithocholic acid, 353.Lucerne, effect of nitrates on nitrogenfixation and nodule formation by,413.Lumist erol , 349.Lupin alkaloids, 372.Lysergic acid, structure of, 374, 375.isoLysergic acid, 378.Magnesium, bombardment of, bydetection of, 451, 453.in relation to assimilation inMagnesium carbide, 157.Magneto-optical analysis, 432.Malaria in monkeys, atebrin andMaleic anhydride, addition of, t oto cyclopentadiene and its deri-Maltose semicarbazone, structure of,Mandelic acid, ammonium salt,, anti-Z-Mandelic acid, replacement ofManganese in relation t o assimilationManganese carbides, 157.Manganic sulphate as reagent inManganite, crystal structure of, 209.Mannans, 260.Mannosaccharodilactone, structureManool, 269.Manoyl oxide, 269.deuterons, 23.plants, 430.quinine therapy in, 406.therapy in, 405.abietic acid, 268.vatives, 240.251.septic action of, 407.hydrogen by deuterium in, 229.in plants, 430.volumetric analysis, 448.and properties of, 253505 INDEX OF SUBJECTS.Matai.See Podocarpus spicatus.Z-Matairesinol, 271.dl- and Z-Matairesinol dimethyl ethers,Melting-point apparatus, 468.Mercurials in syphilis therapy, 404.Mercury, detection and deterniin-determination of, 438, 462.Mercuric salts, determination of,Mesomerism, 44.Metals, detection of non-metallicquantum theory of, 203.catalytic, dehydrogenation with,noble, as catalysts, 306.272.ation of, 450.464.impurities in, 452.305.Metaldehyde, structure of, 220.l\fetascolecite, crystal structure of,Methane, molecular orbital of, 43.Methane, nitro-, enolisation of, indeuterium oxide, 101.Methionine, synthesis of, 402.5-Methoxy- 3-dimethylaminomethyl-indole, synthesis of, 380.7-Methoxy-1 : 2-cyclopentenophenan-threne, synthesis of, 324.y-Methoxy- up- isopropylidenedioxy-p-carbomethoxy-n-butyric acid,methyl ester, 248.206.oxidation of, 92.Methyl azide, structure of, 81.Methylamine, oxidation of, 93.2 -Methyl- 1 - A 7-but enyl- 3 : 4-dihydro -phenanthrene, cyclisation of, 317.1 - Methyl - 2 - dr - butenylcyclo -hexanol, cyclisation of, 317.9-Methyl-l-decalone, synthesis of, 341.7-Methylenecholesterol, irradiated,inactivity of, 392.2 : 5 - endoMethylene - ,41:3 - dihydro -benzoic acid, catalytic reductionof, 244.3 : 6 - endoMethylene - A1:* - dihydro -phthalic acid, catalytic reductionof, 244.(endo) 2 : 5-endoMethylenehexahydro-benzoic acid, 242.trans-3 : 6-endoMethylene - 4 - keto-hexahydrophthalic acid, cataly-tic reduction of, 244.eX0-Cis-3 : 6-edoMethylene - 4 - keto-hexahydrophthalic anhydride,catalytic reduction of, 244.trans-2 : 5-endoMethylene - 6 - methyl-(ezo)tetrahydrobenzoic acid(endo), 241.2 : 6-endoMethylene - d3 - tetrahydro-benzoic acid, 240.trans-3 : 6-endoMethylene - A4 -tetra-hydrophthalic acid, 241.Me thyle thyle thylene, hydration of,under influence of acids, 96.Methylethylglyoximes, copper andnickel, 161.a-Methylglucopyranoside, action of,with lead tetra-acetate, 247.oxidation of, 246.5-Methylglucose, 248.Methylglycogen, particle weights of,in benzene and in calciumchloride, 258.1 - Methyl - dl - cycZohexen - 3 - one,dehydrogenation of, 305.a-Methylhydrindene, dehydrogen-ation of, 309.a- and p-Methylhydrindenes, de-hydrogenation of, 302.8 - Methyl - 1 - hydrindenone, prepar-ation of, 340.a-Methylmannopyranoside, oxidationof, 246.a-Methylmannoside, oxidation of,246.Met h y lme t hox y phenan t hrenes , pre -paration of, 340.9-Methyloctalin, dehydrogenation of,302.3 - Methylcyclopentenophenanthrene,302.2 -Methylpyrrolizidine, 23 7.&Methyl Z-rhamnofuranose, 255.4-Me t hyl Z-rhamnopyranose, 2 55.a-Methylstyrene, polymerides of, 319.1 -Me thylte tralin, formation of, 3 18.l-Methyltetralin-4-carboxylic acid,dehydrogenation of, 296.,!?-Methyl- a- te tralone, preparation of ,336.7 -Met h y 1 - 1 - t e t ralone , dehy drogen -ation of, 312.Micelles, ionic, structure of, 104.Micro - organisms, forma tion of poly-saccharides by, 261.Modenol, antisyphilitic action of, 404.Molecules, energy of formation of,by variational methods, 38.surface, in films, 113.forces between-59.quantum mechanics of, 37.structure of, from electron diffrac-from spectroscopy, 53.aromatic, diamagnetic anisotropyof, 51.polyatomic, vibrational and rota-tional levels of, 53.dipolar, polarisation of medium by,121.linear, 54.polar, velocity of reaction between,spherical, 55.symmetrical-top, 56, 57.tion, 81.96506 INDEX OF SUBJECTS.Molluscs, sterols of, 346.Molybdenum, at.wt. of, 136.determination of, 440.isotopes, 16.Molybdenum hexacarbonyl, 176.Monosaccharides, 245.Moulds, growth of, in deuteriumoxide, 102.Myosmine, 380.Naphtha( 1’ : 2’ : 2 : 3)fluorcne, pre-Naphthalene, preparation of, froinparation of, 332.tetralin, 295.hydrogenation of, 314.structure of, 287.sulphonation of, 290.Naphthalene, chloro-derivatives, di-Naphthalene-1 : 5-disulphinylacetic1 -( 1’-Naphthyl)cycZohexoue, dehydro-Neodymium nitrates and solenate,Nephelome t ry, 4GQ.Nerolidol, dehydration of, 316.Nervous diseases, administration ofNeutrons, bombardment of nuclei by,slow, properties of, ant1 theirpole moments of, 289.acid, preparation of, 289.genation of, 296.183.vitamin-B, in, 384.24.capture, 28.Nickel as catalyst, 305.isotopes, 16.Nickel benzylmetliylglyoximes, 158.carbide, decomposition of, 156.carbonyl, structure of, 83,” 162.structure and parachor of, 166.oxide, colour of, 192.phthalocyanine, 160.sulphides, crystal structure of,Niobium, analysis of, 443.Nitrates.See uruler Nitrogen.Nitrides, metallic, heats of formationNitroarnine, catalytic decompositionNitrogen, at, wt. of, 139, 144.207.at. wt. of, 136.of, 187.of, 97.bombardment of, by neutrons, 24.determination of, in organic com-fixation of, by Azotobacter, 410.nucleus, scattering of fast jl-supply of, t o plants in relation totervalent, stereochemistry of, 337.pounds, 465.by Rhizobia, 411.particles by, 32.chlorophyll, 428.valency angle of, 85.Nitrogen fluorides, 149.monoxide (nitrous oxide), structureof, 82.dioxide (nitric oxide), reactions of,with bromine, chlorine, hydro-gen, arid oxygen, 92.Nitric acid monoliydrate, structureof, 210.Nitrates, determination of, 447.Nitrogen-oxygen distance, 80.Nitrosoamine, preparation and struc-Ni trosyl perchlora te and sulpha te,exoNorbornylamine, 242.Norlupinane, 373.Nuclei, effect of resonance on dis-tances between, 45.tmnsmutations of, 17.ture of, 189.188.Nucleosides, natural and synthetic,Nutrition, effect of, on formation of253.chlorophyll in plants, 428.Octahydrodibenzanthrone, synthesisas.- Octahydrophenanthrene, syn-Octahydro-9-phenanthrol, dehydro-Octahyclropyridocoline, synthesis of,d* : 1°-a-Octdone, preparation of, 340.cyclo Octane, dehydrogenation of, 3 10.CEstmdiol, 360, 397.(Xstresstanol, 345.(Estreasterol, 346.C1Estrio1, 360.Uhtrone, 360.Olea europea, Z-olivil from resin of,275.Olefins, complex compounds of, withmetallic salts, 177.Olive.See Olea europea.n- and iso-Olivils, 275.Opium alkaloids, detection of, 468.Optical activity and tautomerism,Orcinol, exchange of hydrogen withOrganic analysis, 465.Organo-metallic compounds, com-plex, optically active, 232.Orpiment, crystal structure of, 208.Orsanine, trypanosomes resistant to,404.Orthoformic acid, ethyl ester, hydro-lysis of, in deuterium oxide, 102.Osmium, lattice constants of, 202.Oxalic acid, detection of, 468.of, 339.thesis of, 321.genation of, 312.372.232.deuterium in, 293.determination of, 468.dihydrate, structure of, 218INDEX OF SUBJECTS. 507Oxalic acid, ammonium salt, mono-calciuni salt, dihydrate, structure0 xidation-reduction reactions, colori-Oxides, crystal structure of, 203.1 : 15-Oxidopentadecane, 368.1 : 14-Oxidotetradecane, 367.Oximes, configuration of, 286.a- and fl-Oximes, equilibrium ofOximinothiocamphor as indicator,Oxonitin, structure of, 376.Oxygen, determination of, in organichydrate, structure of, 219.of, 219.metric, 466.interconversion of, 231.436.compounds, 465.isotopic composition of, 141.valency angles of, 84.y-Oxygen, structure of, 217.Oxygen-chlorine distance, 79.Oxygen-fluorine distance, 79.Oxygenated compounds, seleniumdehydrogenation of, 304.dZ-Oxysparteine, structure of, 373.Palladium as catalyst, 305.Palladium glycines, lb8.I’arachor of co-ordination com-pounds, 165.Paraldehyde, structure of, 83.Particles, determination of size of,by X-rays, 201.a-Particles, bombardment of nucleiby, 17.Peganine, 370.Peganum harmala, peganine from,370.Pellagra, chicken and human, 385.Pentaborane, structure of, 83.Pentadeuterobenzhydrylamine ,Pentadeuterobenzoic acid, 293.cycZoPentadiene, additions to, 240.resolution of, 228.adduct of, with maleic anhydride,detection of, 467.polymerisation of, 238.239.cyclopentadiene-l-carboxylic acid,methyl ester, adduct of, withmaleic anhydride, 240.Pentane, oxidation of, 92.cycZoPentane, hydrogenation and de -hydrogenation of, 311.cycZoPent anoperhydrophenanthrene,natural products from, 341.cycZoPentanot e trahydrophenan-threne, 322.1 : 2-cycZoPentenophenanthrene series,cyclisation of, 339.1 -cycZoPentylhydrindene, dehydro -genation of, 299.:Pepper, red Hungarian, vitamin-PPerandren, 359.Perchloric acid. See under Chlorine.Periodic acid.See under Iodine.Periplogenin, 363.Persulphates. See under Sulphur.Petroleum naphthencs, dehydrogen-ation of, 307.Phcnanthrene, formation of, bydehydrogenation, 31 1.from, 390.hydrogenation of, 314.preparation of, 299.o-Yhenanthroline, compounds of, withferric salts, 173.Phenol, detection of, 468,determination of, in presence ofPhenol, o-chloro-, configuration of,Phenols, detection of, 466, 468.Phenol ethers, aciclolysis of, 97.Phenosafranine as indicator, 436.Phenoxarsines, dissymmetry of, 230.Phenoxthionin, 369.a-Phenylacet oacet ic acid, 1 -menthy1ester, enolisation and racemis-ation of, 234.Phenylanthranilic acid as indicator,434.a-Phenylbutyric acid, a-amino+-hydroxy-, synthesis of, 402./I -Phen yle t hy lcyc lo pent y lcarbinol ,325.2 -PhenylcycZohexylacet ic acids,preparation of, 339.3 - Phenyl - 4 - methyltetrahydro - 4 -carboline - 5-carboxylic acid, 3 74.10 - Phenylphenoxarsine - 2 - carboxy-lie acid, optical activity of,230.8-Phenyl-n-valeric acid, a-amino-j3-hydroxy-, synthesis of, 402.Phosphates.See under Phosphorus.Phosphonitrile chloride, structure of,225.Phosphorus, determination of, 463.Phosphorus hydrides, 184.cresols, 467.287.nitrides, 186.peroxide, 184.pentoxide, 185.Phosphates, removal of, in quali-Hypophosphitos, determination of,Pyrophosphates, 195.12-Phosphotungstic acid, hydrated,structure of, 214.Photometric titrations, 464.Photosynthesis in plants, 416.mechanism of, 420.Phrenosinic acids, detection of, 202.Phthalocyanine, structure of, 221.tative analysis, 451.445508 INDEX OFPhthalocyanines, structure of, 215.metallic, 160.stereochemistry of, 161.structure of, 213.Picea d i e s , d-pinoresinol from resinPicene, synthesis of, 324.Picolinic acid, copper and silverderivatives, 184.d- and 1-Pimaric acids, 267.Pinane, dehydrogenation of, 3 10.Pine, pink.See Dacrydium biformc.silver. See Dacrydium colensoi.Pinene, dehydrogenation of, 308.d-Pinoresinol, 27 7.Pinus nigra, d-pinoresinol from resinPiper cubeba, cubebin from fruit of,Piperit one, dehydrogenation of, 308.Plants, carbon assimilation of, 416.of, 277.of, 277.273.effect of nutrition on chlorophyllformation in, 428.photosynthesis in, 416.leguminous, nodulation of, in rela-tion to carbon-nitrogen balance,412.Platinum as catalyst, 305.bombardment of, by deuterons, 24.detection of, 449.isotopes, 17.Platinum glycines, 158.metals, analysis of, 441.phthalocyanine, 160.Platyphylline, 378.Pneumococcus, polysaccharides from,261.Podocarpus spicatzu, 1-matairesinolfrom, 271.Podophyllot osin, 27 5 .Poisons, toad, 364.Pollucite, crystal structure of, 206.Polymerisation, 93.Polyphenols, exchange reactions of,with deuterium oxide, 293.Polysaccharides, formation of, bymicro -organisms, 2 62.osmotic pressure of acetyl andmethyl derivatives of, 258.Pneumococcus, 263.determination of, 444, 463.in relation to assimilation inPotassium mribromido, structure of,cuprocyanide, structure of, 163.ferricyanide, magnetic suscepti-hydrogen carbonate, structure of,tetroxide, structure of, 194, 210.Potassium, at.wt. of, 140.plants, 429.164, 214.bilities of, 51.211.Potato. See Solanum tuberosum.SUBJECTS.Praseodymium, magnetic suscepti-Praseodymium nitrates and selenate,A 5-Pregnene-3 : 20-dione, 344.Proabietic acid, 268.Progesterone, 344.d-Proline from ergot alkaloids, 374.Prontosil, 407.Prontosil 5, 407.Propionitrile, dipole moment of, inisoPropy1 bromide, decompositionProtein,Bence Jones,structureof, 226.Proteins, 399.bility of, 181.183.non-polar solvents, 125.of, in alkaline solution, 97.films of, 116.structure of, 224, 226.Protoactinium, at.wt. of, 138.Protons, bombardment of nuclei by,Proustite, crystal structure of, 208.Prussian blue, structure of, 213.Psoralea corylifolia, psoralene from,Psoraleno, 368.Pterins, detection of barium salts of,Pyrargyite, crystal structure of, 208.Pyridine, determination of, in pres-Pyrocatechol, infra-rod absorptionPyrocatechol, C-nitro-, as indicator,Pyrogallol, exchange of hydrogenPyrophosphates. See under Phos-Fyroyuinovaic acid, 355.Pyrrole, stereochemistry of, 237.19.368.202.ence of nicotine, 467.and structure of, 287,436.wit'h deuterium in, 293.phorus.Quantum mechanics of molecules, 37.Quartz, crystal structure of, 285.Quaterphenyl, crystal stmcture of,Quinacrine in malaria therapy, 406.Quinol, exchange of hydrogen withdeuterium in, 293.isoQuinoline alkaloids, 380.223.Racemic compounds, effect of pow-Radioactive elements from boron,Radioactivity , 15.Radium, at.wt. of, 136.Radium fluoride, crystal structure of,Radium-E, formation of, from bis-dered quartz on, 175,fluorine, and lithium, 22.208.muth, 24INDEX OF SUBJECTS. 509Radium-#, at. wt. of, 138.Ravenelin, 369.Rays, cosmic, 33.@-Rays,. emission of, in nuclearpassage of, through matter, 32.y-Rays, bombardment of nuclei by,passage of, through matter, 32.X-Rays, tubes for, 196.use of, in crystal structure deter-minations, 196.Reactions in solutions, 94.addition and substitution, stericcourse of, 238.chemical, quanta1 theory of, 86.dry, use of, 139.gaseous, 91.Realgar, crystal structure of, 208.Resins, natural, 266.Resonance, 44.Resorcinol, exchange of hydrogenstructure of, 221.Resorcinol, 2-nitro-, structure of, 285.Rhenium, detection of, 449.Rhenium fluoride, 151.Rhizobia, carbon metabolism andnitrogen fixation by, 411.Rhodium as catalyst, 305.Rings, aromatic, reduction of, 314.large, containing oxygen, 367.Rose-Bengal as indicator, 436.Rotation, relation of, to configura-tion, 173.Robinobiose, 255.Rock-salt, crystal structure of, 208.Rubber, structure of, 224.Rubidium, at.wt. of, 141.Rubidium chloride, crystallographyof transformation of, 209.Rubrene, crystal structure of, 223.Ruthenium, lattice constants of, 202.Ruthenium ammines, 172.Ruthenium red, constitution of, 171.disintegration, 31.26.with deuterium in, 293.restricted, 49, 236.chloroammine, 170.Saccharodilactone, preparation of,Salicylaldoxime acetate, configurationSapietic acid, 268.Sapocholic acid, 355.Saponins, 364.Sapotalin from triterpenes, 303.Sarmentogenin, 363.Sarmentogenone, 363.Sarsaparilla root, saponins from, 365.Sarsasapogenin, 365.Scillaridin-A, 364.Sclareol, 269.253.of, 286.Scolecite, crystal structure of, 206.Scymnol in bile of sharks, 355.Selenium as dehydrogenation cata-separation of, from sulphur, 441.Selinene, dehydrogenation of, 297.Senecio plutgphyllus, alkaloids from,Seneciphylline, 378.Sesame oil, d-sesamin from, 277.d-Sesamin, 277.Sesquiterpenes, dicyclic, dehydro-genation of, 295.Silane, decomposition of, 94.oxidation of, 93.Silicon, detection of, 456.determination of, 463.Silicon dioxide, determination of, indisulphide, crystal structure of,Silicates, crystal structure $, 206.Silk of oysters.See " Byssus.Silver, at. wt. of, 139.detection of, 454.detection, determination, and sep-aration of, 453.determination of, 437, 464.Silver fluoride, 15 1.organic compounds, complex op-tically active, 232.phosphate, structure of, 211.selenide, sulphide, and telluride,crystal structure of, 207.lyst, 299.378.presence of fluorine, 446.207.Sitostanol, 345.Sitosterol, 345.Sleeping sickness, Nigerian, chemo-Smilagenin, 365.Soaps, colloid character of, 104.Soap solutions, solvent power of, andSodium, determination of, 445, 463.isotopes, 16.Sodium borate as standard solution,carbonate monohydrate, structurepyroborates, hydrated, spacetherapy in, 403.structure, 11 1.434.of, 211.groups of, 210.Solancarpidine, 379.Solancarpine, 379.Solaneine, 378.Solangustidine, 379.Solanidiene, dehydrogenation of, 378.Solanidine-s, 378.Solanidine-t, 378.Solanocapsidine, 379.Solanocapsine, 379.Solanum pseudocapsicum, alkaloidssolanum sodommum, solanidhe-8of, 379.from, 378510 INDEX OF IUBJECTS.Solanum tuberosum, alkaloids from,Solanurn xanthocarpum, allraloidsSolids, action of atoms with surfacesSolvents, effect of, on dipolemoments,117, 118.orientation of anisotropic mole-cules of, round dipoles, 121.polar, 133.d-Sorbose, synthesis of, 245.Soya beans, nodule formation andSpectra, infra-red absorption, ofmolecular vibration, in relation t oquartz, 467.378.from, 379.of, 47.nitrogen fixation by, 413.organic compounds, 285.interatomic force, 59.Spectrographs, mass, 15.Spectrometer, automatic ioniuation,Spectrophotometers, 457, 45 8.Spectroscopy, 53.Spinels, structure of, 203.Spruce.See Picea abies.Starch, constitution of, 256.particle weight of, in zinc chloridedispersions, 258.phosphoric acid in, 259.Starch dextrins, osmotic pressure andviscosity of, 257.Step photometers, Pulfrich, 468.S t ereochemistry, 22 8.Sterols, dehydrogenation of, 302.197.synthesis of substances related to,unirnolecular films of, 115.332.Sterols, brominated, 343.Sterol group, natural products of, 341.Stichococczcs bacillaris, effect of tem-perature on respiration andassimilation in, 418.Stigmastanol, 345.St igmast erol, 345.configuration of, 347.Strontium, determination of, 444.isotopes, 16.S trophanthidin, 3 63.Strophuntlaus, sarmentogenin fromStructure, determination of, by ap-proximate methods, 40.by dehydrogenation, 294.Succinanilomethylamide - p - arsonicacid, sodium salt, in trypanoso-miasis, 403.Sucrose, effect of deuterium oxide oninversion of, 100.Sugars, copper solution for analysisof, 466.reducing, determhation of, 467.Sulphates.See under Sulphur.seeds of, 363.Sulphit e -liquors lact one, 2 74.Sulphur as dehydrogenation catalyst ,determination of, in organic com-dioxide, structure of, 85.Sulphates, determination of, 446.isomorphism of, with tellurates,211.Persulphates, determination of , 447.Suprasterols, 351.Surface chemistry, 103.Syphilis, treatment of, in India, 404.295.pounds, 465.Sulphur fluoridos, 147.Tachysterol, 349.Tantalum, analysis of, 443.at.wt. of, 136.lattice constants of, 202.Tar oils, dehydrogenation of, 307.Tartaric acid, detection of, 467.Tartramide, structure of, 219.Tartrazine as indicator, 436.Tautomerism and optical activity,Tellurium, at. wt. of, 136.232.detection of, 454.Tellurates, isomorphism of, withsulphates, 211.Temperature, critical, determinationof, 152.Terpenes, dehydrogenation of, 295.Testosterone, 357, 398.Tetracyclic con~pounds, preparationof, 322.Tetrahydroartemisia, ketone, detec-tion of, 202.Tetrahydrobenzpyrene, dehydrogen-ation of, in quinoline, 296.Tetrahy drocadinene, 2 95.3 : 4 : 5 : 6-Tetrahydro-4-carboline-5-carboxylic acid, 374.Tetrakis-thioacetamide cuprous andsilver chlorides, 163.Tetralin, configuration of, 281.dehydrogenation of, 295.formation of, 318.Tetralins, bromo-, dipole moments of,n-Tetralone, dehydrogenation of, 297.a-Tetralones, synthesis of, 336.Tetramethylmethane, zero point en-Tetraphenanthrolinedioldiferric chlor-Thallium, detection, determination,282.tropy of, 217.ide, 173.and separation of, 453.determination of, 438.tervalent, detection of, 454.thallous, determination of, 437.Thallous fluoride, crystal structureof, 208INDEX OF SUBJECTS.51 1T heophylline 6-me thyl-2-rhamno -furanoside, synthesis of, 255.Thevetigenin, 3 62.Thiochrome, structure and synthesisof, 382.Thiocyanic acid, potassium salt, asvolumetric standardsolution, 434.Thorium, at. wt. of, 138.bombardment of, by neutrons, 26.Thorium carbide, gases from hydro-lysis of, 155.d( - )-Threonine, 402.d-Threose, preparation of, 247.Thujane, dehydrogenation of, 310.Tigogenin, structure of, 365.Tin, detection of, 449.determination of, 441, 462.determination and separation of,stannic, valencies of, 164.Tin compounds, stereochemistry of,Titanium, allotropy of, 202.detection of, 454.determination of, 463.determination and separation of,Tobacco, alkaloid of, 380.Tobacco mosaic virus, crystalstructure of, 226.orientation of molecules of, insolutions, 201.a-Tocopherol, 392.Tolidine, detection of, in presence ofbenzidine, 468.Toluene, 2 : 3-dichloro-, nitration andsulphonation of, 287.p-Toluidine, structure of, 223.Toluidines, determination of, 467.Transmutation, nuclear, 17.2 : 3 : 4 - Tribenzoyl 5 - triphenyl-methyl Z-arabinose dicthyl-mercaptal, 252.Trichodesma incanum, alkaloid from,377.Trichodesmidine, 3 7 7.Trichodesmine, 377.1 : 1 : 3 - Trimethyl - 2 - n - butylcyclo-hexane, dehydrogenation of, 303.2 : 3 : 6-TrimethylgalacDose, 261.1 : 1 : 2-TrimethylcycZoheptane, de-hydrogenation of, 310.Trimethylplatinic chloride, structureof, 162.Trisdipyridylruthenous salts, 17 1.Tropinone, action of, with allrylcarbonates, 381.Trypanosomes, arsenic-resistant, 403.Trypanosomiasis, 403.Tryparsamido, 403.Tsuga sieboldii.See Hemlock, Japa-Teugaresinol, 2 74.440.164.441.nese.Tubera aalep, mannan from, 260.Tungsten, at. mt. of, 136.Tungsten hexacarbonyl, 176.Tunny-liver oil, vitamin-D, from,determination of, in presence of tin,oxides, 205.353, 390.437.Ultramarines, crystal structure of,Unsaturated compounds, heat ofUranium, at. wt. of, 137, 138.bombardment of, by neutrons, 25.Uranium-lead, at. wt. of, 138.Urethanes, detection of, 467.Urine, specific polysaccharides from,human, excretion of vitamin-12, in,pregnancy, ccstrogenic hormones206.hydrogenation of, 250.265.384.from, 398.Ursodeoxycholic acid, 334.Uzarigenin, 362.Uzarin, 363.Valency angles, 84.Valency force field, 60.Valonia, fibre formation in, 226.Vanadium, lattice constants of, 202.Vanadium pentoxide, crystal atruc-sols, particle size of, 201.Varianose, 261.Variation principle, Ritz, 38.Vasicine, 370.Veratridine, 3 76.Veratrum album, constituents of, 377.Veratrum alkaloids, 376.Velocity of reaction in solution, 94.effect of pressure on, 95.quanta1 theory of, 87.Verine, 376.Vitamin-A, detection of, 433.Vitamin-B,, 384.Vitamin-B,, complex iiat ure 01, 383.Vitamin-B,, 386.Vitamin-U,, 385.Vitamin-C, 387.Vitamin-D, 349, 390.Vitamin-D,, aihydro-deriva tive ofmaleic anhydride adduct of,dehydrogenation of, 306.Vitamin-D,, 352, 390.Vitamin-E, 392.Vitamin-K, 394.Vitamin-P, 390.ture of, 203.synthesis of, 381.alcohol from wheat germ oil withactivity of, 346512 INDEX OF SUBJECTS.433.Wheat gem oil, constituents of, 392.Wool, orientation of cells of, 201.Xanthotoxin, 368.o-Xylem, configuration of, 282.Xylidines, determination of, 467.Zeolites, crystal structureZinc, detection of, 450.Zingiberene, dehydrogenation ofdetermination of, 443, 462.298.180.of, 206.Zirconium, detection of, 454.determination of, 443