INDEX OF SUBJECTS.Abietic acid, structure of, 187.Abietic acid, di- and ktra-hydroxy-, 188.Abortion, treatment of, with vitamin-E, 234.Acetaldehyde, barrier potential in, 51.Acetic acid, basic beryllium salt, diamagnet-condensations with, 172.diamagnetism of, with water, 43.fermentation of, 258.ism of, 40.Acetic acid, cyano-, dissociation constant of,127.Acetone, analysis of mixtures of, with ethy1,methyl, and isopropyl alcohols, 278.determination of, 277.thermodynamic data for, 51.vibrational frequency of, 58.Acetyldurene, dipole moment of, 124.Acetylene, potential energy function of, 62.Acetyl-lupanolic acids, 203.Acetylmesitylene, dipole moment of, 124.Acida, catalysis by, of condensations, 1 17.organic, strength of, 127.polyene carboxylic, 178.polyene dicarboxylic, 179.strengths of, 130, 132.stances from, 263.Actimmyces antibioticus, anti- bacterial sub-Actinomycins, 263.Adenosine diphosphate, phosphorylation of,Adenosine triphosphatase in muscle, 242.Adenylpyrophosphatase, 247.Adermin, 235.Adonis vernalis, 2 : 6-dimethoxybenzoquin-Agar-agar, constitution of, 153.Age-hardening of alloys, 96.cU-Alanine, structure of, 108.Alcohols, analysis of, 275.polyene, 17 7.synthesis of, 147.Aldehydes, phenyl polyene, 183.polyene, reduction of, 177.preparation of, from acids, 225.synthesis of, 148.Alginic acid, 162.Alkali halides, diamagnetism of, 38.hydroxides, action on, of chlorine andiodine, 71.plyiodides, 70.metals, analysis of, 267.244.See also Vitamin-B,.one from, 206.Alkaline-earth hydroxides, action on, ofAlkyl halides, spectra of, Raman, andAlkylation, mechanism of, 118.3-Alkyl-2-methyl-4-hydroxyquinolines, 264.chlorine and iodine, 71.rotation, 53.Allene, barrier potential in, 51.Alloys, crystalline, 95.Ally1 aryl ethers, fission of, 149.Alopecia, anti-factor for, 237.Aluminium alkyls, association of, 67.determination of alkali metals in, 273.alloys, with copper, age-hardening of, 96,borohydride, 66, 103.chloride, catalytic action of, 120.deposition of, on platinum, 97.organic compounds, preparation of, 143.Amunita musmria, pigment from, 206.Amines, synthesis of, 149.Amino-acids, essential, 238.Ammonia, spectrum of, infra-red, 59.Ammonium halides, diamagnetism of, 38.106.Amylopectin, 169.Amyloses, 169.8-Amyradienol-I, 195./l?-Amyradienonol, 196./3-AmyranonoI, 196./?-Amyrenonol, 195.iso-/?- Amyrenonol, 196.8-Amyrin, structure of, 193.Analysis, 264.Anethole, determination of, in anise oil, 284.Aneurin.See Vitamin-B,.Animal pigments, 205.Anise oil, analysis of, 284.Anthracene, polymerisation of, 41.Anthraquinone, spectrum of, absorption, 21.Arabans, 156.Arabic acid, structure of, 159, 161.Arbacia pustulosa, pigments of, 208.Arsenic compounds, %-covalent, stereochem-trifluoride, entropy of, 54.trihydride, spectrum of, infra-red, andAscaridole, determination and structure of,aIspergillus, bactericides from, 263.Aspergillus f civnigatuu, fumigatin from, 205,Aspergillus glaucus, pigments from, 213, 261.Atoms, difference between nuclei and, 293.Athamantin, 223.Athamanturn ormadinurn, athamantin from,Atromentin, 206.Aucuba mosaic viru~, crystal structure of,109.Austenife, crystal structure of, 95.Svidin, 235.97.with silver, crystal structure of, 97.manganese chloride, crystal structure of,istry of, 216.structure, 58.285.361.223.31 312 INDEX OF SUBJEOTS.Avitaminosis-E, 234.Azadehydroabietic acid, 191.8-Azaretene, 191.cis-Azobenzene, structure of, 106.Azines, 225.Azoimide, spectrum of, infra-red, and struc-holes, 225.ture, 56,59.Bacillus vermifmc?, dextran from, 153.Bacteria, heterotrophic, carbon dioxide utilis-propionic, glycerol fermentation by, 259.Bactericides from moulds, 262.Balsams, determination of ethyl phthalateBanana starch, 167.Barium fluogermanate, structure of, 104.fluosilicate, structure of, 104.Barley roots, glucosan from, 153.Bases, organic strength of, 127, 134.Beans, determination of alkali metab in,Beckmann rearrangement, 121.Benzaldeh de, dipole moment of, 125.Benzene, erivatives, substituted, spectra of,ation by, 257.in, 286.274.absorption, 19.diamagnetism of, 30, 44.resonance and structure of, 16.Benzene, 1 : 3 :5-tribromo-, structure of, 107.nitro-, diamagnetism of, 30.nitroso-, polymerisation of, 41.Benzidine rearrangement, 123.Benziminazoles, synthesis of, 226.Benzonitrile, reactions of, with lithium alkylsBenzophenone, diamagnetism of, 31.Benzylmethyldiazoacetone, rearrangementBeryllium borohydride, 66.disintegration of, 287.nuclear photo-effect for, 297.Betulin, 201.reaction of, with hydrogen peroxide, 204.Bios, 249.components of, 237.Bios IIB, 235.Biotin, 235.constitution of, 249.Bismesityl, spectrum of, absorption, 17.Bisnorlupanolic acid, 202.Blood, determination of alkali metals in,determination of fructose and glucose in,vitamin-A in, 233.and aryls, 226.of, 123.275.281.Boletol, 211.Boletus, pigment from, 21 1.Borohydrides, 65.Boron, absorption of neutrons by, 295.trifluoride, catalytic action of, 120.spectrum of, infra-red, 58.a-Boswellic acid, 200.Bromine, diamagnetism of, 44.ions, diamagnetism of, 35.Bromine, radioactive isotope, exchange of,with ethyl and hydrogen bromides, 87,88.Bromoplatinatm, exchange of radiobrominebetween, 88.Bmdla abortus, utilisation of carbon dioxideby, 257.Bunsen’s salt, structure of, 104.Butadiene, spectrum of, absorption, 15.Aa-Butenolides, &substituted, preparation of,Butterflies, pigments of, 227.Butyl-lithium, metalation with, 145.n-Butyric acid, dissociation constant of, 127,spectrum of, absorption, 9.220.130.fermentation of, 258.Cadmium chloride, diamagnetism of, 31.Caesium, determination of, 268, 270, 273,halides, structure of, 103.halides, diamagnetism of, 38.polyiodides, 70.ions, diamagnetism of, 35.274.Cajuput oil, determination of cineole in, 283.Calciferol, extinction coefficient of, 266.Calcium carbonate, X-ray photograph of,Caldariornyces f umago, caldariomycin from,Caldariomycin, 262.Calycanine, structure of, 108.Camphor, determination of, 285.Camphor oil, detection of, in rosemary oil,Canuvalia obtusifolia, canavanine from, 256.Canavanine, 256.Caraway oil, determination of carvone in,Carbohydrates, analysis of, 278.Carbon bonds, diamagnetic depression due93.262.286.284.to, 39.tetrachloride, spectrum of, Raman, 60.diamagnetism of, 39.isotope, 84.suboxide, reaction of, with methylmagnes-ium iodide, 149.monoxide, diamagnetism of, 44, 45.dioxide, diamagnetism of, 45.reduction of, to acetic acid, 258.utilisation of, by bacteria and tissues,257.disulphide, diamagnetism of, 44.Carbon-black, crystal structure of, 101.Carbon-carbon bonds, 62.Carbon-hydrogen bond, spectra of, infra-red,59.Carbonyls, metallic, 7 1.and their halidea and hydrides, table of,dia- and para-magnetism of, 42.72.Crtrbonyl chloride, heat of formation of, 54.Carboxymethyltriphenyl-lead, 144.Carminic acid, 214INDEX 01Carotenoih, spectra of, absorption, 17.syntheses of, 170.Carviolacin, 213, 262.Carviolin, 213, 262.Carvone, determination of, in caraway oil,Catalysts, for aldehyde condensations, 173.284.in alkylation, 118.in condensations, 116, 117.metallic, nitrogen isotope exchange on, 87.Catenarin, 211, 261.Cells, effect of high pressure on, 245.Cellobiuronic acid, 165.Cementite, crystal structure of, 95.Cheilosis from riboflavin deficiency, 230.Cherry gum, 162.Chlorine ions, diamagnetism of, 35.trdoxide, diamagnetism of, 42.oxides, dia- and para-magnetism of, 43.spectrum of, absorption, 9.Cholesterol, and its derivatives, crystal struc-Choline, 235.Chromans, synthesis of, 220.Chromium hezacarbonyl, 75.Chrysene, spectrum of, absorption, 24.Chrysophanol, 213.Cineole, determination of, in cajuput andCitral, condensation of, with crotonalde-determination of, in lemon oil, 284.preparation of polyene aldehydes from,j!3-cycEoCitral, condensation of, with dehgdro-Citrals, syntheses with, 171.Citric acid, formation of, by moulds, 260.Citrinin, 263.Citrulline, 256.Citrullus vulgaris, 256.Citrus pectic acid, 151.Citrylideneacetaldehyde, 175./?:cycZoCitrylideneacetaldehyde, 175.Citrylidenecrotonaldehydes, 175.CEadonia, pigment from, 213.Claisen condensation, 115, 123.CEostridi.um acidi urici, carbon dioxide reduc-Clove oil, detection of, in bay or pimentoClover, sweet, determination of coumarin in,spoiled, ha?morrhagic agent from, 223.Cobalt tri'carbonyl. 74.letracarbonyl, 72.hydride, 74.structure of, 82.reactions of, with thio- and thiol-ture of, 108.metabolism of, 240.eucalyptus oils, 283.hydes, 175.175.citral, 174.tion by, 259.berry, 286.determination of eugenol in, 284.283.and its derivatives, 75, 76.compounde, 80.crystal structure of, 98.nitrosyl, 81.carbonyl, 81.SUBXEUTS.313Cobalt, nitmsyl carbonyl, structure of, 82.Coccinin, 214.Coccus cacti, pigment from, 214.Cochineal, pigments from, 213.Cocksfoot, proteins from, 255.Colorimetric analysis of alkali metrtls, 272.Condensation, mechanism of, 115.Co-ordination compounds, radioactive ex-change between, 88.Copper alloys, with aluminium, age-hardeningwith iron and nickel, crystal structureCoumarans, hyclroxy-, preparation of, 222.Coumarin, determination of, in sweet clover,Coumrins, natural, 223.Creatine, metabolism of, 241.Cresol, diamagnetism of, 33.Cress seeds, mucilage from, 164.des-Crocetin, synthesis of, 180.Crotonaldehyde, condensations with, 172.Crotonic acid, y-iodo-, ethyl ester, reactionof, with aldehydes and ketones, 178.Crystals, inorganic, 99.nitrosyl halides, 81.diselenide, crystal structure of, 102.of, 96, 97.of, 97.283.synthesis of, 220.metallic, structure of, 96.reflection from, of X-rays, 92.structure of, classification of, 99.Crystallography, 91.Cucumber virus, crystal structure of, 109.Cumulenes, 186.Curtius rearrangement, 121.Cyameluric acid, structure of, 227.$-isoCyanine, spectrum of, absorption, 22.Cyanine dyes, spectra of, absorption, 22.Cyano-esters, unsaturated, synthesis of,Cyanogen chloride, polymerisation of, 41.179.entropy of, 54.specific heat of, 54.vibrational frequency of, 59.Cynodontin, 211, 261.Damson gum, 161.Dark adaptation, in relation t o vitamin-Adeficiency, 232.Decatetraenal, 172.Decatetraenic acid, 178.A'-Decene-1: I0-dicarboxylic acid, 249.Dehydrocitral, condensation of, with /?-cydo-Dehydrogeranic acid, synthesis of, 178.Dehydrogeraniol, 178.Deoxoglycyrrhetic acid, 199.Dermocybe sunguinea, pigments from, 21 1.Dermocybin, 211.Deuterium, equilibrium of, with hydrogensulphide, 54.nuclear photo-effect for, 297.oxide, diamagnetic susceptibility of, 29.selenides, spectra of, infra-red, and struc-citral, 174.ture, 58314 INDEX OF SUBJECTS.Deuteroacetylenes, vibrational frequencies of,Ueuteroethane, nitro-, colour change on1 -Deuteroethane, %homo-, spectruni of,Deuteromethane, spectrum of, infra-red, 57.Diamagnetic susceptibility, atomic and ionic,58.dissociation of, 90.Raman, 53.33.table of, 36.Diamagnetism, 27.additivity of, 37.effect of temperature on, 20.of gases, 43.of polymerides, 40.formula for, 35.Diamond, crystal structure and X-ray reflec-Diazoaminobenzene, nickel complex, dia-Diazo-ketones, Wolff rearrangement of, 122.Diazonium nitrates, synthesis of, 149.salts, organometallic derivatives from,Dibenzylaniline hydrochloride, Hofmann-Diborane, barrier potential in, 50.Di-n- butyl-lead dichloride, decomposition of,Didymocarpus pdicellata, pigment from, 207.Diene value of essential oils, 285.Diethyldichlorosilane, hydrolysis of, 69.Difluorophosphoric acid, 70.Dihydrovitamin-A, preparation of, 183.Dimethylacetylene, barrier potential in, 50.Dimethylamine, barrier potential in, 50.&-Dimethylbutadiene, polymerisation of, 41.Dime t h y ldichlorosilane , hydrolysis of, 69.4 : 4’-Dimethyldiazoaminobenzene, nickelcomplex, diamagnetism and structureof, 42.tion of, 94.magnetism and structure of, 42.143.Martius rearrangement of, 123.properties of, 66.142.vibrational frequency of, 59.1 : 12-Dimethyldodecahexaene, 177.Dimethyl ether, barrier potential in, 51.2 : 3-Dimethyl methylgalactofururonoside,methyl ester, 151.2 : 3-Dimethyl methylgalactopyruronoside,methyl ester, 151.2 : 6-Dimethylphenyl ally1 ether, Claisen re-arrangement of, 123.Dimethylsilicon dichloride, 68.Dimethyl sulphide, barrier potential in, 50.vibrational frequency of, 59.Dimethyltellurium halides, diamagnetism of,Dioxadiene, 220.Diphenic acids, stereochemistry of, 2.Diphenyl, 2-hydroxy-, 149.Diphenylantimony trichloride, 144.Diphenyldmium, 145.Diphenyldichlorosilane, hydrolysis of, 69.Diphenyl-o-diphenylylcarbinol, 146.1 : 22-Diphenyldocosaundecaene, 185.1 : 12-Diphenyidodecahexaene, 185.1 : 6-Diphenylenehexatriene, 185.40.Diphenylene dioxide, structure of, 107, 217.1 : 16-Diphenylhexadecaoctaene, 185.1 : 8-Diphenyloctatetraene, 184.4 : 5-Diphenyloctatetraene, 185.Diphenyl polyenes, 184.1 : 3 -Diphenylpyrazol~, 4-cyano-5 -amino -,Diphenylselenium bromide, structure of, 10.7.1 : 30-Diphenyltricontapentadecaene, 185.o-Diphenylyl-lithium, 146.1 : 3-Diphosphoglyceric acid, 244.Dissociation constants, equations for, 1 28,Distillation apparatus for isotope concen-tration, 84.Diterpenes, 187.5 : 10-Di-p-tolyl-5 : 10-dihydroarsanthren,stereochemistry of, 216.Dodecapentaenal, 173.Dodecapentaenol, 178.Double decomposition, organometallic com-Dyes, polymerisation of, in solution, 21.spectra of, absorption, in relation to225.129.of organic acids, 127.pounds formed by, 145.resonance, 21.E chinochromes ,208.Echinocystic acid, 200.Echimystis fabacea, hydrolysis of saponinfrom, 200.ortho-Eff ect, inhibition by, of mesomerism,124.Egg-albumin, polysaccharide from, 166.K-Electrons, capture of, into the nucleus,Elm, slippery, mucilage from, 163.Embelia riberr, fruits, pigment from, 207.Embelin, 207.Emodic acid, 212.Emodin, w-hydroxy-, 212.Enation mosaic virus, crystal structure of,Energy of ionisation, 131.Energy of molecules, 48.Enteromorpha compresae, polysaccharideEntropy of long-chain compounds, 55.Enzymes, 252.Equations, Badger, 63.Erythroglaucin, 213, 261.Esters, saponification of, 285.Ethane, barrier potential in, and infra-red290.109.from, 164.of molecules, 48.Morse, 62, 63.spectrum, 52.force constants in, 61.molecules, rotation in, 47.potential energy function of, 61.spectrum of, vibrational, 50.vibrational frequency of, 58.Ethane, tetrachloro-, spectrum of, Itaman,dihalogeno-derivatives, spectra.of, Raman,54.and rotation, 53INDEX OF SUBJECTS. 315Ethoxyacraldehyde acetal, condensation of,with imines, 224.Ethyl alcohol, analysis of mixtures of, withacetone, methyl alcohol, and isopropylalcohol, 278.determination of, 275.Ethyl butyl ketones, diamagnetism of, 32.Ethyl chloride, barrier potential in, 52.Ethylene, specific heat of, 54.spectrum of, absorption, 14.vibrational frequency of, 59.infra-red, and structure, 57.4-Ethylpyridine, preparation of, 223.Eucalyptus oil, determination of cineolc in,Eugenol, determination of, in clove oil, 284.8-Euionone, 182.Europium salts, spectra of, absorption, 14.283.in essential oils, 285.Parnesinal, 174.E’arnesinol, 178.Felspars, crystal structure of, 105.Ferrocyanides, structure of, 104.Fish meal, vitamin-& from, 207.Flax seed, mucilage of, 163.Flue dust, determination of alkali metals in,Fluorine, bombardment of, with protons, 294.276.with a-rays, 293.ions, diamagnetism of, 35.structure of, 100.Polic acid, 237.Foods, determination in, of vitamins, 228.Force constants, 60.Formaldehyde, spectrum of, infra-red, andFormic acid, diamagnetism of, with water,dissociation constant for, 127, 129.spectrum of, infra-red, and structure, 5 i .Formylacetone sesquioxime, formation fromof isooxazoles, 219.Priedel-Crafts reaction, 11 8.Pries rearrangement, 123.Fructose, determination of, 280.Fruit, sour, cooking of, 231.Fumaric acid, formation of, by moulds, 260.Fumigatin, 205, 261.Fungi, lower, metabolic products of, 261.Furan, diamagnetism of, 40.Furans, mercuration in, 144.Furfuraldehyde, polymerisation of, 41.Fuse1 oil, analysis of, 278.structure, 57.43.in presence of glucose and sucrose, 280.pigments from, 211.synthesis of, from 1 : 4-diketones, 218.Gdnctogen from snailn, 156.2 -d- Qalacturonosido-2-rhamnow, 1 63.Gitses, diamagnetism of, 43.rare, diamagnetism of, 44.Gallium alkyls, association of, 67.trialkyls, 136.Gela, intrauellular, 244.Gelatin gels and 8018, 244.Germane, spectrum of, infra-red, 59.Geronic acid, 175.Gingivo-stomatitis, in relation to vitamin-C,Gliadin, dicarboxylic acids of, 25i.2-/3-d-Glucopyruronosido-d-mannose, 162.Glucose, determination of, 279.6-Glucuronosidogalactose, 162.r-Glutamic acid from gliadin, 257.Glycerol, fermentation of, 259.Glycine, determination of, 257.Glycyrrhetic acid, 198.Gold, absorption of neutrons by, 296.Graphite, crystal structure of, 96.Grass juice factor, 237.Grasses, proteins from, 254.Grignard reagents, syntheses by mean8 of,Growth substances, 248.for lower plants, 251.Guanidoacetic acid, conversion of, iritocreatine, 241.Guanopterin, 227.Gum arabic, 159.231.147.Haemorrhage, prevention of, with vitamin-K,Hair, grey, anti-factor for, 236.Halogens, spectra of, absorption, 9.Heat, specific, of molecules, 48.Heat of ionisation, 131.Helix p m t i a , galactogen from, 155.Helminthosporin, 21 1.Hdminthsporium, catenarin from, 261.pigments from, 211.Hdminthosporium cynodontis, cynodontinHeterocyclio compounds, 215.aromatic, systematisation of, 21 5.stereochemistry of, 216.Hevea brasiliensis, proteins of, 256.Hexa-arylethanes, diamagnetism of, 40.Hexadecaheptaenol, 178.Hexadeuteroethane, potential energy func-235.from, 262.tion of, 61.spectrum of, vibrational, 50.vibrational frequency of, 58.Hexamethyldilead, structure of, 103.Hexamethylisonitriloferrous chloride, etruc-cydoHexane, spectrum of, Raman, and struc-Hexaphenyldigermane, dissociation of, inHexaphenyIdipIumbane, dissociation of, inHexoses, analysis of, 279.Hofmann rearrangement, 121.Horse-chestnut starch, 167.Hydratropic azide, Curtius degradttticm of,Hydrazine, spectrum of, 59.Hydrazoic acid.See Azoimide.ture of, 104.ture, 53.benzene and in solid state, 45.benzene and in solid state, 45.121316 INDEX OF SWJEUTS.Hydrindene, 6 : 6-dibromo-, structure of, 107Hydrocarbons, polyene aliphatic, 177.spectra of, absorption, 14.synthesis of, with Grignard reagents, 147.thermodynamics of, 51.unsaturated, heat of hydrogenation of, 55Hydrochloric acid, diamagnetism of, wit1Hydrocyanic acid, entropy of, 54.Hydrofluoric acid, polymerisation of, 64.Hydrogen, diamagnetism of, 44.Hydrogen bonds, 63.water, 43.exchange of, for deuterium in relation t cperoxide, spectrum of, infra-red, and struc.selenide, spectrum of, infra-red, and struc.sulphide,equilibrium of, with deuterium, 54,Hydromelomc acid, structure of, 227.Hypericin, 214, 262.Hyperi'cum perforaturn, pigment from, 214,Claisen condensation, 115.ture, 56.ture, 68.262.IminoindazoIea, structure of, 64.Iminopyrazoles, structure of, 64.Indium alkyls, association of, 67.Inertia, moments of, 47.formula for, 62.Inositol, determination of, 251.Insects, pigmenta from, 213,227.Iodic acid, diamagnetism of, with water, 43.a-Iodic acid, crystal structure of, 102.Iodine, spectrum of, absorption, 9.Iodine ions, diamagnetism of, 35.B-Ionylideneacetaldehyde, 182.4-Ionylideneacetaldehyde, cyclisation of, 175.4-Ionylideneacetaldehydes, 176.j?-Ionylideneacetic acid, distillation of, 182.ethyl eater, in vitamin-A synthesis, 181.synthesis of, 178.Iridium carbonyls, 74.tricarbonyl halides, 79.carbonyl hydride, 74.Iron alloys with copper and nickel, crystalstructure of, 97.enneacarbonyl, structure of, 82.dimrbonyl chloride, 78.tetracarbony1 hydride, and its derivatives,iodide, thermal decomposition of, 78.reactions of, with thio- and thiol-trialkyls, 136.Ionone, reactions of, 180.f ononea, syntheses with, 171.75, 76.structure of, 82.compounds, 80.pepentucarbonyl, 71.structure of, 82.nitrosyl cclrbonyl, 81.structure of, 82.Iaomeridea, diamagnetism of, 32.Isotopes, concentration of, by exchange, 83.exchange of, in inorganic chemistry, 83.in relation to p-stability, 291.Isotopes,investigation of nitrogen metabolismnon-radioactive, exchange of, 85.radioactive, exchange reactions with, 87.with, 239.Jamesonite, crystal structure of, 101.Keratin, structure of, 109.a- and 8-Keratins, 242.Kermes, pigments from,.213.Kermesic acid, 213.Ketoacetyloleanolic acid, 197.Ketones, synthesis of, 148.a/3-unsaturated, spectra of, absorption, 18.Laccaic acid, 214.Lac-dye, pigments from, 213.Laclobacillus arabinosus, growth factors for,Lactobacillus casei, growth factor for, 251.Lactobacillus pe?atosua, growth factors for,251.Lactose, determination of, in presence ofmonosaccharides, 279.Lamimria doustoni, polyglucose from, 153.Laminarb, 153.Larch wood, e-galactan of, 156.Lavender oil, adulteration of, 286.Lead chloride, diamagnetism of, 31.halides, structure of, 103.monoxide, crystal structure of, 101..Leaf stripe disease in cereals and grasses,Leaves, proteins of, 254.Lecanium ilicis, pigment from, 213.Lepminosae, pigments from, 21 1.Lemon oil, determination of citral in, 284.Leucornskc dextranicurn, dextran from, 153.Leuconostoc mssenterioides, growth factors for,Leucopterin, 227.Libethenite, crystal structure of, 105.Lichens, 213.Liliaceae, pigments fiom, 21 1.Linseed, mucilage from, 164.Lithium, absorption of neutrons by, 295.251.211.251.borohydride, 66.crystals, X-ray reflection from, 94.determination of, 268, 269, 273.halides, diamagnetism of, 38.hydroxide hydrate, crystal structure of,hydride, diamagnetism of, 38.ions, diamagnetism of, 35.isotopes, concentration of, 85.organic compounds, carbonation of, 149.Liver, nucleotides from, 251.Lucerne, proteins from, 255.Lupanalol, 202.hpanetriol, 203.hpenalol, 202.102.;upeo1,201.reaction of, with hydrogen peroxide, 204INDEX OF SUBJECTS.31 7Luvangn scandens, luvangetin from, 223.Luvangetin, 223.Madder, pigments from, 21 1.Mcesa japmiea, fruits, pigment from, 207.Maesaquinone, 207.Magnesium alkyl halides, electrolysis of, 137.benzyl chloride, tolyl compounds from, 149.methyl iodide, reaction of, with carbonorganic compounds, carbonation of, 149.phenyl bromide, reaction of, with propio-suboxide, 149.phenone oxime, 149.Magnetochemistry, review of, 27.Maize, amino-acids of, 257.Malt extract, analysiB of, 281.Mannans, 157.Melam, structure of, 227.Melamine, structure of, 107.Melem, structure of, 227.Melon, 227.Melons, water, citrullinc from, 2%.Menthols, analysis of, 284.Z-BIenthyl N-aminomrbamate, as reagent forMercuration, organometallic compoundsMercurous chloride, diamagnetism and struc-Mercury iodides, additive compounds, dia-salts, complexes of, with olefins, 138.Merocyanine, spectrum of, absorption, 25.Mesitylaldehyde, dipole momeht of, 135.Mesityldimesitoylethane, keto-enolic trans-formation of, 218.Nesomerism, inhibition of, by wtho-eff ect,124.Mesons, 289.Metabolism, carbohydrate, vitamin-B, in,229.nitrogenous, 237.Metals, crystalline, 95.Metalation, organo-metallic compoundsMetallic carbonyls, 7 1.Methane, formation of, in fermentation, 258.Methane, halogeno-derivatives, spectra of,carbonyl compounds, 286.formed by, 144.ture of, 31,45.magnetism of, 42.formed by, 145.nitrosyls, 81.spectrum of, infra-red, 57.Raman, 60.nitro-, barrier potential in, 51.vibrational frequency of, 59.Methanobacterium omelinnski, oxidation ofalcohols by, 258.Jf ethanobacterium aijhngenii, fermentationby, of acetic and butyric acids, 258.jtf ethanococcus maxi, fermentation by, ofacetic and butyric acids, 258.Methionine, function of, in metabolism, 240.Methyl alcohol, analysis of mixtures of, withacetone, ethyl alcohol, and isopropylalcohol, 278.Iipotropic effect of, 240.barrier potential in, 51.Methyl a.Ilcoho1, barrier potential in, andinfra-red spectrum, 52.determination of, 276.azide, spectrum of, infka-red, 69.borate, structure of, 103.chloride, entropy of, 54.isocyanate, spectrum of, infra-red, 59.cyanides, force constants in, 61.halides, force constants in, 61.spectra of, infra-red, and structure, 58.Methylacetylene, vibrational frequency of,Methylamine, barrier potential in, 50.molecular rigidity of, and infia-red spec-spectrum of, infra-red, and structure, 56,Methylcrotonaldehyde, self-condensation of,/l-Nethylcrotonaldehyde, condensation of,Nethylenebis-4-hydroxy-3-coumarinyl, 223.Methylene-blue, spectrum of, absorption, 21.Methylene groups, diamagnetic effect of,31.Methyl y-heptyl ketoxime, Beckmann re-arrangement of, 121.2-Methyl-4-hydroxyquinolines, 224.Methylsilicon tm’chloride, 68.oxides, polymeric, 68.Methylthiol, barrier potential in, 61.vibrational frequency of, 59.Michael condensation, 115.Molecules, internal rotation in, 46.Molybdenum hezacarbonyl, 75.Moulds, anti-bacterial substances from, 262.Mucilages, 163.Muconic dialdehyde, preparation of, 174.Nuscarufin, 206.Muscle, contraction of, 241.Mustard oils, determination of easenth1 oilsin, 286.Mustard seed, white, mucilage from, 164.Myosin, 241.denaturation of, 246.structure of, 109.a- and /l-Myosins, 242.Myristic acid, alkali salts, diamagnetism of,59.trum, 53.Raman, 60.173.with /l-cyclocitral, 174.58.formation of citric and fumaric acids by,260.46.a-Naphthylacetamide as plant growth sub-stance, 249.Negatrons, 290.Neodymium salts, spectra of, absorption, 13.Neon, formation of, from fluorine, 294.Nephromopsis endocrocea, red acid from, 213.Neutrinos, 289.Neutrons, from beryllium, 287.passage of, through light elements, 296.resonance, 296.thermal, 296.Nickel from reduction of its salts, 70318 INDEX OF SUBJECTS.Nickel alloys, with copper and iron, crysttstructure of, 97.lalracarbonyl, 71, 76.o-phcnanthroline derivat,ive, 81.structure of, 82.chloride, diamagnetic susceptibility of, 2tNicotinamide, dosage with, in pellagra, 230.Nicotinic acid, determination of, 230, 266.Night blindness, treatment of, with vitaNiobates, complex, structure of, 104.Nitrates, spectra of, absorption, 11.Nitric acid, diamagnetism of, with water, 43Nitriles, unsaturated, synthesis of, 179.Nitrites, spectra of, absorption, 11.Nitro-compounds, aromatic, inhibition in, oNitrogen, diamagnetism of, 44,45.isotopes, concentration of, 85.structure of, 100.min-A , 232.spectrum of, absorption, 12.structure of, 102.mesomerism, 125.exchange of, 86.Nitrogen compounds, complex heterocyclicstereochemistry of, 217.ring, 223.monoxide, diamagnetism of, 45.trioxide, structure of, 86.tetroxide, barrier potential in, 52.oxides, paramagnetism of, 43.Nitroso-compounds, synthesis of, 149.Nitrosyls, 81.Nitrosyl chloride, diamagnetism and struc-ture of, 46.frequency in, 54.Nitrous acid, spectrum of, absorption, 11.Nitroxyl perchlorate, 70.Norechinoc ys t endione, 2 0 0.Norechinocystenone, 200.Norlupanondiol, 203.Norlupanonol, 203.Novae, neutrinos in relation to, 290.Nuclei, collisions of, 291.difference between atoms and, 293.disintegration of, 287.isomeric transitions of, 291.light, 297.transformations of, 218.Nutrition, assessment of level of, 229, 232.A*:'-Octadiene-l : 8-dicarboxylic acid, 249.Octatrienal, 172.Octatrienic acid, 178.Oils, essential, adulteration of, 286.analysis of, 282.fluorescence of, 284.separation of, 283.Oleanolic acid, structure of, 193.Oleks, mercury complexes with, 138.Oleic acid, alkali salts, diamagnetism of, 46.Oranges, determination of alkali metals in,274.Organo-metallic compounds, 136.fission of, with componndg having activehydrogen, 139.Organo-metallic compounds, reactivity of, inOroselone, 223.Orthoclase, crystal structure vf, 105.Osmium telroxide, spectrum of, absorption,13.Osteomalacia, control of, with vitamin-D,233.Ovomucoid, extraction of, from egg-white,166.Oxalate ions, exchange of, with tri-oxala,to-complexes, containing radioactive car-bon, 89.i.soOxazole-3-carboxylate acids, reaction of,with phenylhydrazine, 219.Oxygen, isotopes of, exchange of, 85.paramagnetism of, 43.structure of, 100.Oxygen ring compounds, 220.Oxypenicilliopsin, 21 4.relation to the metal, 140.syntheses with, 147.Palladium monoxide, structure of, 102.Palmitic acid, alkali salts, diamagnetism of,synthesis of, 178.Pantothenic acid, 235.as growth factor, 251.determination of, 230.Papain, 252.Partition function of molecules, 48.Paxillus atrotomentoms, pigment from, 206.Pectic acid, 150.Pectin, 150.Pedicinin, 207.Pellagra, dosage of, with nicotinamide, 230.Penicillic acid, 263.Penicillin, 263.Penicilliopsin, 214, 262.Penicilliopsis davaricefonnis, pigment from,214, 262.Penicillium, pigments from, 212.Penicillium carmino-violmeum, carviolacinand carviolin from, 262.Penicillium eitrinum, citrinin from, 263.Penicillium cyclopium, penicillic acid from,263.DenicilEium mtaturn, penicillin from, 263.Penicillium phcaniceum and rubrum, pigmentDeniciElium roseo-purpureum, roseopurpurin"enicillium sclerotiorum, sclerotiorine from,)enicilEium spinulosum, pigment from, 205.YcloPentadiene, polymerisation of, 41.NoPentane, barrier potential in, 50.-Pentenal, preparation of, 174.'entoses, analysis of, 279.eoPentyl chloride, action of sodium on, 123.iodide, 147.'eppermint oil, furfuraldehyde in, 286.'erezia, pigment from, 207.'erezinone, 207.46.methylatioh of, 151.from, 206.from, 262.262INDEX OF SUBJECTS.319Perezonc, and hydroxy-, 20’7.Perfumes, determination of ethyl phthalatePerhydrovitamin-A, synthesis of, 182.Permanganates, spectra of, absorption, 12.Perosis, prevention of, by choline, 236.Petroleum distillates, nitrogen bases of, 225.Peziza ceruginosa, pigment from, 209.Phellandrenes, analysis of, 286.Phenazine, configuration of, 217.Phenetidine, diamagnetism of, 33.Phenol, chloro-, diamagnetism of, 33.Phenols, synthesis of, 147.Phenols, nitro-, spectra of, absorption, 20.Phenoxthionine, configuration of, 217.Phenylalanine, conversion of, into tyrosine,1 -Phenyl-5-azidotetrazole, 226.Phenylethyldichlorosilane, hydrolysis of, 69.7-Phenylheptatrienic acid, 178.Phenylhydrazones, reaction of, with GrignardPhenylmethyldichlorosilane, hydrolysis of,Phenylnonatetraenol, 184.Phenylnonatetraenonitrile, 170.Phenylpentadecaheptaenal, 184.Phenylpentadienal, 183.Phenylpentadienic acid, 179.wo’-Phenylpolyenes, diamagnetisni of, 40.Phenyltridecahexaenal, 184.13-Phenyltridecahexaenic acid, 178.Phenylundecapentaenal, 184.11 -Phenylundecapentaenol, 178.Phcenicin, 206.Phosphorus, radioactive isotope, use of, asindicator in analysis, 88.Phos horus pentachloride, structure of, 104.tri%ydride, spectrum of, infra-red, andoxyhalides, 70.in, 286.structure of, 107.p-nitroso-, spectrum of, absorption, 20.240.reagents, 149.69.structure, 58.structure of, 63.Photo-effect, nuclear, 297.Photographs, X-ray Laue, 92.Phthalic acid, ethyl ester, adulteration ofessential oils with, 286.Physcion, pigments from, 213.Pigments, natural, anthraquinone, 210.benzoquinone, 205.naphthaquinone, 207.phenanthraquinone, 208.quinone, 205.Piiiacyanol chloride, spectrum of, absorp-tion, 22.1 -Piperidylbutadiene, condensation of, withacetaldehyde, 173.Pipitzahoic acid, 207.Plants, constituents of, 248.growth substances for, 248.higher, anthraquinone pigments from, 211 1.pigments of, 205.proteins of, 254.Plant viruses, crystallography of, 109.Planlago fmtigiatu, mucilage from, 163.Plantago Euiu.wlutu, seeds, mucilage from,Plantago psyllium, seeds, mucilage from, 163.Platinum monoxide, structure of, 102.Plumbonic acids, 143.Pneumococci, polysaccharides of, 165.Pneumonia in relation to vitamin&’, 231.Polarographic analysis of vitamins, 266.Polygonacez, pigments from, 21 1.Porcupine quill, structure of, 109.Positrons, 290.Potassium, determination of, 268, 270, 672,163.273, 274.polyiodides, 71.ions, diamagnetism of, 35.isotopes, concentration of, 85.Potato virus, crystal structure of, 110.Potential, barrier, 50.measurement of, 47.Potential energy function, 60.Polyenes, spectra of, absorption, 16.Polymerisation, diamagnetism in, 40.a- and p-Polyoxymethylenes, diamagnetismPolyphenyls, spectra of, absorption, 17.Polyporic acid, 206.Polypvrus nidulans, pigment from, 206.Polysaccharides, 160.Polyterpenes, 187.Polyvinyl alcohol, structure of, 107.Pressure, high, technique for, 71.Propane, spectrum of, infra-red, 58.Propiophenone oxime, reaction of, withmagnesium phenyl bromide, 149.isoPropy1 alcohol, analysis of mixtures of,with acetone, ethyl alcohol, and methylalcohol, 278.thermodynamic data for, 51.n- and iso-Propyl alcohols, determinationPropylene, barrier potential in, 51.vibrational frequency of, 59.Proteins, action of papain on, 252.hydrolysis of, 256.spectra of, infra-red, 59.structure of, 64.spectroscopy of, 186.synthetic, 170.in solution, 21.of, 41.of, 277.Proleus morganii, growth factor for, 251.Proline, determination of, 257.Pseudocentrotus depressus, spinochrome from,208.Pleridiirm aquilinum, tryptophan content of,255.Pterins, 227.Pyrans, hydroxy-, preparation of, 222,Pyrazoles, 225.Pyridine, mercuration in, 144.Pyridines, 223.formation of, from pyrroles, 218.2 : 3-disubstituted, synthesis of, 224.2-Pyridones, 3-cyano-, synthesis of, 224.Pyridoxin. See Vitamin-B,.a-Pyrones, 5-aubstituted, preparation of, 280.y-Pyrones, mercuration in, 144320 INDEX OF SUBJECTS.Fyrrole, diamagnetism of, 40.spectrum of, infra-red, 57.Pyrrolea, formation of, from furans, 218.Pyruvic acid, combination of, with carbondioxide in tissues, 260.Quillaia bark, mpogenin of, 200.Quillaic acid, 200.Quince seeds, mucilage from, 164.Quinols, alkylated, preparation of, 221.w o n e a , alkylated, preparation of, 221.Qumone pigments, natural, 205.-ones, reaction of, with metallic enolates,227.Radicals, electronegativity series of, 139.Radioactivity, induced, 288.a-Radioactivity, 289./?-Radioactivity, 289.Rapam madmonsiczii, pigment from, 207.Rapanone, 207.&Rays, spectra of, 290.y-Rays from radioactive elements, energylevels from, 294.X-Rays, reflection of, from crystals, 92.use of, in study of alloys and metals, 99.Rearrangements, 121.Rhamnacez, pigments from, 21 1.Rhenium pentacarbonyl halides, 79.compound8, diamagnetism of, 40.Rheumatic fever in relation to vitamin-C, 231.Rhodocladonic acid, 213.Riboflavin, determination of, 230,266.Ribonuclease, 254.Rice starch, 167.Rickets, production and healing of, 234.Ring-chain transformations, 218.Rosemary oil, adulteration of, 286.Rotation, internal, in molecules, 46.Rottlerin, and its derivatives, spectra of,Rubber, crepe, protein from, 256.Rubber latex, proteins of, 255.Ruberythric acid, constitution of, 21 1.Rubiacese, pigments from, 211.Rubiadin 3-/3-d-glucoside, synthesis of, 21 1.Rubidium antimony chloride, diamagnetismand structure of, 45.triiodide, 70.ions, diamagnetism of, 35.tetracarbony1 hydride, 75.organic, redistribution of, between metals,141.absorption, 18.Ruthenium carbonyls, preparation of, high-pressure technique for, 72.Salicylaldehyde, cobalt and nickel com-Salicylddimine, cupric and nickel complexes,Salicylic acid, strength of, 135.8alvia miltiorrhizm, roots, pigments from, 209.Sclerotiorine, 262.plexes, structure of, 46.structure of, 46.Sea-urchins, eggs, pigments of, 208.spines, pigments of, 208.Seeds, hard, mannans in, 157.Selanthren, structure of, 107.Selenium compounds, diamagnetism of, 40.Semiquinone radicals, 216.Silane, iodo-derivatives, 69.Silicon oxychlorides, 67.Silver alloys with aluminium, crystal struc-ture of, 97.Silyl iodide, 69.Snails, galactogen from, 155.Sodium, crystals, X-ray reflection from, 94.determination of, 268, 269, 213, 274.ions, diamagnetism of, 35.Sodium chloride, X-ray photographs of, 93.polyiodides, 70.nitrate, X-ray photographs of, 93.organic compounds, preparation of, 143.sulphate, diamagnetism of, in water, 30.Soils, determination of alkali metals in,Solorina croceu, pigment from, 213.Solorinic acid, 213.Solvents, aprotic, 135.Sorbaldehyde, 112.Sorbic acid, structure of, 108.E-Sorbose, determination of, 280.Spectra, absorption, 7.in polyene series, 186.infra-red, 55.infra-red and Raman, 46.molecular, 46.Raman, 60.ultra-violet, 63.Spectrographic analysis of alkali metals,Spinochromes, 208.Spindosin, 205.Starch, chemistry and structure of, 167.spectrum of, infra-red, 59.halides, optical sensitising of, 25.274.oxygenated, analysis of mixtures of, 278.r61e of, in acid dissociation, 133.and molecular rotation, 53.273.determination of, 281.structure of, 64.synthetic, 168.synthesis of, 178.Stearic acid, alkali salts, diamagnetism of,46.Sterols, chemistry and crystallography of,Strawberry pectic acid, 151.Styrene, polymerisation of, 41.Succinic acid, formation of, by fermentation,Sugars, analysis of, 278.reducing, determination of, 280.separation of, 281.Sulphur, crystal structure of, 100.isotope, 84.108.260.radioactive, exchange of, with sulphurchloride, 88.Sulphur compounds, diamagnetism of, 40.dioxide, spectrum of, absorption, 11INDEX OFSulphuric acid, diamagnetism of, with water,43.54.Sulphuryl chloride, thermal dissociation of,Tamhinones, 209.Teak wood, 2-methylanthraquinone from,Tellurite, crystal structure of, 102.Tellurium compounds, diamagnetism of, 40.a-Terpinene, detection and determination of,Tetradecahexaenal, 173, 178.Tetradeuteroethylene, potential energy func-tion of, 61.vibrational frequency of, 58.Tetraethyl-lead, reactions of, 139.with triethyl-lead chloride, 142.Tetralin, 6 : 7-dibromo-, structure of, 107.Tetramethylsilicon, barrier potential in, 50.Tetraphenylarsonium iodide, structure of,Tetraphenylhexapentaene, 186.1 : 1 : 6 : 6-Tetraphenylhexatriene, 185.Tetraphenylphosphonium salts, 143.Tetraphenylstibonium salts, 143.Tetrazoles, synthesis of, 226.Thallium, crystal structure of, 95.Thallium trialkyls, 136.Thelephora, pigments from, 208.Thelephoric acid, 208.Thermodynamics, 46.Thiamin.See Vitamin-B,.Thianthren, structure of, 107.Thionine, spectrum of, absorption, 21.Thionyl bromide, structure of, 103.Thiophen, diamagnetism of, 40.Thiophens, formation of, from furans, 218.Tin aryl halides, 142.halides, structure of, 103.monoxide, crystal structure of, 101.Tissues, animal, carbon dioxide utilisationTobacco ash, determination of alkali metals211.286.103.salts, 143.of, 257.in, 275.mosaic virus, crystal structure of, 109.a-, ,&, and y-Tocopherols, 221.Toluenes, nitro-, diamagnetism of, 31, 33.o-Toluic acid, strength of, 135.Toluidine, diamagnetism of, 33.Tomato bushy-stunt virus, crystal structureTonsillitis in relation to vitamin-C, 231.Traumatic acid, constitution of, 249.Trideuteroarsine, spectrum of, infra-red, andstructure, 58.Trideuterophosphine, spectrum of, infra-red,and structure, 58.Triethylaluminium, association of, 67.Triethylbismuth, reactions of, 139.Triethylscandium, 136, 145.Triethylyttrium, 136, 145.Tricydohexyl-lead, dissociation of, in benz.of, 110.ene, 45.REP.-VOL.XXXVIII.SUBJECTS. 321Xmethvlaluminium, association of, 67.vapor& density of,.137.'rimethylarsine, force constants in, 62.himethylgallium, 145.association of, 67.kimethylindium, association of, 67.Crimethylphosphine, force constants in, 62.himethylrhenium, 145.himethyltin, dissociation of, in benzene, 45.rrimethyltriboranetrioxan, structure of, 103.Criterpenes, 191.Critisporin, 21 1.rryptophan, determination of, in hydrolysedleaf proteins, 254.Cungsten hezacarbonyl, 75.ryrosine, determination of, in hydrolysedleaf proteins, 254.polycyclic, classification of, 192.formation of, from phenylalanine, 240.56-Undecene4 : 11-dicarboxylic acid, 249.Uranyl acetates as reagents for alkali metals,269.Urea, force constants in, 62.Urease, 253.Urine, determination of fructose and glucosein, 281.vitamin-A in, 233.Vegetables, green, cooking of, 231.Vibration frequency from spectra, 47.Vitamins, 228.analysis of, 264.determination of, in foods, 228.fat-soluble, 232.water-soluble, 228.action of, with acetone and aluminiumtehbutoxide, 176.deficiency of, 233.determination of, 265.structure of, 171.syntheses of, 170.Vitamin-B,, 228.determination of, 265.Vitamin-B, complex, 230.Vitamin-B,, determination of, 266.Vitamin-C, 230.Vitamin-A, 232.deficiency of, 231.determination of, 230.therapy with, 232.Vitamin-D, 233.determination of, 266.Vitamin-E, 220, 234.Vitamin-F, 234.Vitamin-H, 235.Vitamin-K, 235.Vitamin-K,, 221.Vitamin-K,, structure of, 207.determination of, 267.Wagner-Meerwein rearrangement, catalyaisof, by phenols, 123.322 MDEX OF SUBJECTS.Wasps, pigments of, 227.Water, diamagnetic susceptibility of, 28.spectrum of, infra-red, and structure,Wheat, Indian. See Plantago fastigiata.polysaccharide from, 164.Wheat starch, 167.effect of grinding on properties of, 170.Wolff rearrangement, 122.Wounds, healing of, in relation to vitamin-C,60.231.Xanthopterin, 227.Xanthoria parietina, pigments from, 213.Xenon, phenol compound of, 65.o-Xylene, 4 : 5-dibromo-, structure of, 107.Xylindein, 209.Yeast, growth factors for, 252.Yttrofluorite, crystal structure of, 106.mannan from, 157.polyglucose from, 153