INDEX OF AUTHORS' NAMES. TRANSACTIONS. 1899. (Marked T.) ; and a h o to Proceedings of the Session 1898-189'3 Nos. 138 t o 212, Nov., lSSS-June, 1899 (marked P.). A. Ackroyd, IPillinnt, researches on moor- land waters. I. Acidity, T., 196 ; P., 1899, 1 ; discussion, P., 2. Adie, RicJimd Hnliburfo~, note on the reactions bc tween sulphuric acid and the clemeiits, P., 1899, 132. Allen, Bicliaytl Willi(tm, the maximuin pressure of naphthalene vapour, P., 1899, 122. - the maximum vapour pressure of camphor, P., 1899, 135. Armstrong, Hcwy Edward, an ex- planation of the laws which govcrn substitution in the case of bcnzenoid compounds(thirdnotice), 1'. ,1899,176. Aston, Hcnry. See Pcwy F. Frankland. Auden, Harold Allden, IVilZiccvt Henq Perkin, jnn., and J. L. Rose, experi- ments on the synthesis of caniplioric acid, Part 11.T., 909 ; P., 1899, 162. B. Bagnall, Ernest Harohi, methanetrisul- phonic acid, T., 278 ; P., 1898, 182. Bevan, Edicnrd JoJiz. See C'larics Fyedcrick Cross. Blyth, Alexander Wyntcr, t h o cstirna- tion of boric acid riiainly hy physical processes, T., 722, P., 1899, 51 ; dis- cussion, P., 51. -- the ultra violet absorption spectrum of proteids in relation to tyrosine, T., 1162 ; P., 1899, 175. - the estimation of nitrites and nitrates by means of ferrous chloride ; P., 1899, 50 ; discussion, P., 50. VOL. LXXV. Bone, TYilZiain ArtAtrr, a new method for preparing unsymnietricsl dime- thy 1 - and trimethy 1-succinic acids, P., 1899, 5. Bone, William Arthur, and Clmrles €1. G. Sprankling, researches on the alkyl-substituted succinic acids.Part I. Methods of preparation, T., 839 ; P., 1899, 181. -- the symmetrical di-isopropjl- succinic acids, l'., 1899, 149. Brooke, Arthur. See Hcnry Lloyd Snape. Brown, Hnroltl. See Wyndhnnt R. Dunetan. Brown, EIomce T., and Jamcr Hilis Millar, nidtoclextrin : its oxidation products and constitution, T., 286 ; P., 1899, 11 ; discussion, P., 14. -- attenipts to prepare pure starch derivatives through their nitrates, T., 305 ; I?., 1899, 13; discussion, P., 14. -- the stable dextrin of starch transformations, and its relations to the nialtodextrins and soluble Ytarch, 1'. , 315 ; P., 1899, 13 ; discussion, I?., 14. C. Carpenter, H. C. .If., and Ii'illiam Hcmy Perkin, jm., the action of ethylene dibromide and triinetliylcne dibroniide on the sodium compound of ethylic cyanacetate, T., 921 ; P., 1898, 133.Chapman, Dacid Lcoxard, the allotropic modifcations of phosphmua, T., 734 ; I?., 1899, 102. 4 K1182 INDEX OF AUTHORS. Chapman, David Leonard, and F. Aztstiit Lidbary, non-existence of the so-called suboxide of phosphorus, T., 973 ; P., 1899, 186, Chapman, Edpw Marsh. See Arthur Lapworth. Chattaway, Frehriek Daniel, the com- position of nitrogen iodide, P., 1899, 18 ; discussion, P., 21. Chattaway, Frcdcrkk D., and Rem~edy Joseph P.revite Orton, a series of sub- stituted nitrogen chlorides and their relation to the substitution of halogen in anilides and anilines, T., 1046 ; P., 1899, 152. -- - preparation and properties of nitrogen iodide, P., 1899, 17; discussion, P., 21. - - action of light on nitrogen iodide, P., 1899, -18 ; discussh, P., 21.-- the action of alkali hydroxides, of water, and of hydro- gen pcroxide on nitrogen iodide, P., 1899, 18 ; discussion, P., 21. -- theory of the formation and re’actions of nitrogen iodide, P., 1899, 20 ; discussion, I?., 21. Chattaway, Frederick D., and Henry Potter Stevens, action of reducing agents on nitrogen iodide, P., 1899, 17 ; discussion, P., 21. -- the action of acids on nitrogen iodide, P., 1899, 19 ; discussion, P., 21. Cockburn, CJeorgc Bertram, isomeric feiicholenic acids, T., 501 ; P., 1899, 106. Cohen, Julius Berend, and Hcwy D. Dakin, the alnminiuni-mercury couple. Part 11. Action of bromine on organic conipotlnds in presence of the couple, T., 893 ; P., 1899, 183. Cohen, Julitcs Berend, and Frederick William Skirrow, the aluniinium- mercury couiJe.Part I. Action of sulph’ur chloride on sonie hydro- carbons in presence of the couple, T., 887 ; P., 1899, 183. Collie, Johtb Norman, and T?io?im Tickle, the salts of diniethylpyrone and the qaadrivalence of oxygen, T., 710 ; P., 1899, 148. Crofts, Ja?ncs Murray. See Eobert Selby Morrell. Cross, CJ~arles Predcrick, Edward John Bevan, and Thv. Heiberg, oxidation of furfuraldehyde by hydrogeii peroxide, T., 747 ; P., 1899, 180 ; discussion, P.8 131, Crossley, Arthur Wdliam, some deriva- tives of dimethyldihydroresorcinol, T., 771 ; P., 1898,247. - the interaction of ethylic sodio- malonate and mesityl oxide, P., 1898, 247, and 1899, 52. - the interaction of ethylic malonate and acetylene tetrabromide in presence of sodium ethoxide, P., 1898, 248.Crossley, Adhnr W., and Henry Boitdet Le Sueur, determination of the consti- tution of fatty acids. Part I., T., 161 ; I?., 1898, 228. Cunnington, &red Valentine. See Siegfried Ruhemann. D. Dakin, %envy D. See Ju@s Berend Cohen. Dean, George, determination of the equivalcnt of cyanogen, P., 1898, 174; discussion, 1’. , 174. Dewar, James, presidential address, T., 1167 ; P., 1809, .77. - the boiling point of liquid hydrogen as deteriiiined by a rhodiuin-platinum resistance therniometer, P., 1899, 70. - the comparative colour of the vaponr of iodine in gases at atmo- spheric pressure and in a vacuum, P., 1898, 241 ; discussion, P., 245. Divers, Edward, absorption of nitric oside in gas analysis, T., 82; P., 1898, 221. - interaction of nitric oxide with silver nitrate, T., 83 ; P., 1898, 221.- preparation of pure alkali nitrites, T., 85 ; P., 1898, 222 ; discussion, P., 222. - reduction of an alkali nitrate by an alkalimetal, T., 87 ; P., 1898, 222. - hyponitrites ; their properties and their preparation by sodium or potass- ium, T., 95 ; Y., 1898, 223 ; discus- sion, P., 225. Divers, Edwcwd, and SeihacJhli Hada, ethyl ammonium selenite and the non- existence of amidoselenites (solenos- aiiiates), T., 537 ; P., 1899, 101. Divers, Edward, and Ta?i&emasa Haga, preparation of hyponitrite from nitrite, through hydroxyamidosulyhonate, T., 77 ; I?., 1898, 220. Divers, Edward, and Nusataka Ogawo, ethylamnionium sulphite, T., 533 ; P,, 1899, 101.INDEX OF AUTHORS. 1183 bixon, Augustus Edward, note on certain isomeric tertiary benzylthioureas, T., 373 ; P., 1899, 54.-on Lossner's benzoylethyloxysulpho- carbamic acid and the formation of pseudoureas, T., 3f5 ; P., 1899, 52. - action of metallic thiocynnntes on certain substituted carbaniic and ox- amic chlorides ; and a new inethod for the production of thiobiurets, T., 388 ; P., 1899, 62. Dixon, Harold Bnily, on the mode of burning of carbon, T., 630 ; P., 1899, 118 ; discussion, P., 119. Dixon, Hurold Baity, and James Dysart Peterkin, the action of nitiic oxide on nitrogen peroxide, T., 613 ; P., 1899, 115 ; discussion, P., 116. Dixon, Harold Bnily, and Edward John Russell, the combustion of carbon di- sulphide, T., 600 ; p., 1899, 114 ; discussion, P., 115. Dobbie, Jam@ Joimstons, and Alcrmlder Lander, corydaline.Part VI., T., 670 ; Y., 1899, 129. Dobbie, James Johnstone. See also Walter Noel Hartley. Dootson, Frederick W. , some halogen derivatives of acetonedicarboxylic acid. Part I., T., 169 ; P., 1899, 9. Dootson, FTederick William. See William James Sell. Dowzard, Xdwi?~, detection and deter. niination of sucrose in the presence oi lactose, T., 371 ; P., 1899, 9. Dunetan, 1VyntJham Bvwlc6nd, and Efarold Brown, occurrence of liyos. cyarnine in the Hyoscyamus muticus of India, T., 72 ; P., 1898, 241 ; dis. c-ission, P., 241. Dunatan, FVymZ?Lam Rowland, and Ernen Qoulding, the action of dkyl haloids on hydroxylamine ; formation of sub- stituted hydroxylamines and oxamines, T., 792 ; P., 1899, 58 and 124 ; dis- cussion, P., 60. - - the action of hydrogen per- oxide on secondary and tertiary ali- hatic amines ; formation of alkylated Kydroxylamines and oxamines, T., 1004 ; P., 1899,124.Dunetan, Wpdhanz Rowland and Tho.mns Andemon Henry, occurrence of orthoh droxyacetophenone in the volatile oiT of Chione glabra, T., 66 : P., 1898, 220 ; discussion, P., 220. 6. E~laterfield, Z'hnnm HiEE. See TY. H. Mills, Thonwu Barlow Wood. F. Fenton, IIenry Johsb Horstman, and Nildrcd Gostling, bromomethylfurfur- aldehyde, T., 423 ; P., 1899, 57. Fenton, Hewry J. Horstimm, and Henry Jackson, the oxidation of yolyh ydric alcohols in presence of iron, T., 1 ; P., 1898, 210. -- crystalline glycollic aldehyde, T., 575 ; P., 1899, 119. Findlay, AIcacc?ider. See Frcmis a. JaPP. Forster, Martin Onslow, influence o f substitution on specific rotation in the bornylamine series, T., 934 ; P., 1899, 71 ; discussion, P., 72.- camphoroxime. Part 111. Behaviour of camphoroxinie towards potassium hypobromitc, T., 1141 ; P., 1899, 193. - influence of an unsaturated linking on the optical activity of certain deri- vatives of bornylaniine, T., 1149 ; P., 1899, 194. Fortey, Emily C., action of light and of oxygen on dibenzyl ketone, T., 871 ; P., 1899, 182. Fortey, Emily C. See also h'ydizey Young. Francis, Frmcis E., some derivatives of dihenzyl ketone, T., 865 ; P., 1899, 181. Frankland, Percp Fa~nduy, some regu- larities of the rotatory power of honio- logous series of optically active snb- stances, T., 347 ; P., 1899, 26. Frankland, Percy F., and Henry Aston, position isomerisni and optical activity.The comparative rotator) powers of niethylic and ethylic ditolu. oylglycerates, T., 493 ; P., 1899, 105. Frankland, Percy F., and Frederick Malcolm Whsrton,, position isomerism and optical activity : the methylic and etliylic salts of benzoyl- and ortho-, meta-, and para-toluoylmalic acids, T., 337 ; I'., 1899, 26. Q. Gilbody, Alexander William, and William Henry Perkin, jm., on brazilin and haeniatoxylin, P., 1899, 27, 75. Gostling, Nildred. See Eenry J. Horsd- i~taiz Fenton. Goalding, Errnest. See TVyndham Row- land Dunetan. E. Eada, SeihncJhi. See Eclward Divera Baga, 5'hte?nusa, See Edward Diver8 4 K 21184 INDEX OF AUTHORS. Hall, Miss L. See F. Stanley Xipping. Harconrt, Augustus George Vernon, on a method for providing a current of gaseous chloroform mixed with air in any desired proportions, and on methods for estimating the gaseous chloroform in the mixtures, T., 1060 ; P.1899, 188 ; discussion, P., 190. Harden, Arthur, action of hydrogen peroxide on formaldehyde, P., 1899, 158 ; discussion, P., 169. Earthy, 1Valter Noel, 011 the absorption spectrum and constitution attributed to cyanuric acid, P., 1899, 46. Earthy, ?VaEter Noel, and James J. Dobbie,a study ofthe absorption spectra of isatin, carbostyril, and their alkyl derivatives in relation to tnutomerism, T., 640 ; P., 1899, 47 ; discussion, 48. Harvey, Alfred William. See 1VilEiam J. Pope. Heiberg, Thv. See Charles Frederick Crose. Henderson, Ueorge Uerald, Thomns Work- rthan Om, and IZohert J. Gibson White- head, the action of certain Rcidic oxides on salts of hydroxy-acids, T., 542 ; P., 1899, 107.Henry, Thomns Anderson. See 7Vynd- Aum R. Dnnstan. Hewitt, John Theodore, and Arthur Ernest Pitt, the condensation of oxalic acid and resorcinol, T., 518 ; P., 1899, 100. Hill, Alfred. See Kaderic Stunley Kip- ping. Howlee, F. H., and Jocclyn FieM Thorpe, B-isopropylglutaric acid, P., 1899,103. I. Irvine, James C. See Thoinas Pnrdie. J. Jaakmon, Henmj. Bee Henry J. Eorst- man Fenton, IVilZiam James Sell. Japp, Franc& Robevt, and Alexander Pindlay, condensations of anhydr- acetonebenzil and its homologues with aldehydes, T., 1017 ; P., 1899, 164. - - triphenyloxazolone, T., 1027 ; P., 1899, 165. Japp, Francis R., and Andrew A'. Xeldrum, interaction of yhenanthrs- quinone, acetophenone, and ammonia, T., 1032 ; P., 1899, 166.- - furfuran derivatives from benz- oin and phenols,T., 1035 ; P., 1890,167. - - interaction of benzoin with phenylenediamines, T., 1043 ; P., 1899, 169. Jerdan, David Smiles, the condensation of e t hylic ace tonedicarboxylate and coatitiition of triethylic orcindtri- carboxylate, T., 808; P., 1899, 151. K. Kipping, Frcderic Stanley, derivatives of camplioric acid. Part l I I . , T., 125 ; Y., 1898, 249. - isomeric salts of hydrindamine con- taining quinquevalent nitrogen, P., 1899, 172. Kipping, F. S'tanley, and M$ss L. Hall, synthesis of phenoketoheptamethyl- enc, P., 1899. 173. Kipping, F. Stanley, and Alfred Hill, a-ketotetrahydronaphthalene, T., 144; P., 1899, 4. Kipping, F. Stanley, and Lorcnco L. Lloyd, organic compounds containing silicon, P., 1899, 174.Kipping, F. Stanley, and William J. Pope, characterisation of racemic com- pouiids, T., 36 ; P., 1898, 219. - the characterisation of " racemic " liquids, T., 1119 ; P., 1899. 200. Kohn, Charles Alexandcr, and William Trantom, the interaction of sodium hydroxide and benzaldehyde, T., 1155; P., 1899, 194. L. Ladenburg, Albert, contribution to the characterisation of racemic compounds, T., 465 ; P., 1899, 73 ; discussion, P., 73. Lang, William Robert, and Albert qigaut, the composition and tensions of diu- sociation of tho ammoniacal chlorides of cadmium, T., 883 ; P., 1899, 182. Lapworth, Arthur, derivatives of ad-di- bromocamphorsulphonic acid, T., 558; P., 1899, 61. - action of hydrolytic agents on a-di- broniocamphor. Constitution of broniocamphorenic acid, T., 1134 ; P., 1899, 202.Lapworth, Arthur, and Edgar Marsh Chapman, hoinocamphoronic and cani- phoronic acids, T., 986 ; p., 1899, 159. Lander, Alexander. See James J. Dobbie. Lawrence, JVillinnt Trevor, hydrolysis of the y-cyanides of di-substituted acetoacetntes, T., 417; P., 1898, 251. - synthesis and preparation of terebic and terpenylic acids, T., 527 ; P., 1899, 104. - ethylic BB-dimethylpropanetetra- carboxylate, P., 1899, 62.INDEX OF AUTHORS. 1185 Laurrence, William Trevor, methyliso- amylsuccinic acid. I., P., 1899, 163. Lees, Frederick H., and 1Villinin Henry Perkin, j m , , on pseudocampliolactone and pscudolauronolic acid, P. , 1899, 23. Le Suear, Henry Rondcl. See Arthirr William Crossley. Lidbnry, F. Austin. See David LeoiLnrd Chapman.Lloyd, Lorcnzo L., and John J. Bnd- borough, diortho-substituted benzoic acids. Part IV. Formatiou of salts from diortho-substituted benzoic acids and different organic bases, T., 580 ; P., 1899, 3. Lloyd, Lorcnzo L. See also Frederic Stan- 2cy Kipping, John J. Sndborongh. Lowry, Thomas Martiw, studies of the terpcnes and allied compounds. Nitro- catnphor and its derivatives. IV. Nitrocamphor as an examplc of dynamic isomerism, T., 211 ; P., 1899, 25. - crystallisation of dynamic isomer- ides : a correction, I?., 1899, 76. M. McKenzie, Alex., active and inactive phenylalkylaxyacetic acids, T., 753 ; l’., 1899, 149. - a con tribntion to the chemistry of mandelic acid, T., 964 ; P., 1899, 186. Marsh, Jmwrs Emest, the action of sul- phuric acid on fenchone, T., 1058 ; P., 1899, 196.- is camphene saturated ? Y., 1899, 54. Maason, [David] Orme, and 13. D. Bteele, the blue salt of Fehling’s solution and other cnprotartrates, T. 725 ; P., 1899, 120 ; discussion, P., 120. Meldola, Raphael, paranitro-orthanis- idine, P., 189% 226. leldola, Raphrtcl, and Percy Phillip Phillips, amidoamidiries of thc naph- thalene series, T., 1011 ; P., 1899, 187. Meldrum, Andrew I?. See Francis Robert JaPP* Messinger, Carl. See Emerip6e C. szsrvasy. Millar, James Hills. See Horace T. Brown. l i l l s , 1V. H., and Thomas Bill Eaeter- field, derivatives of dibenzylmesi tylene, P., 1899,22. Moody, Gerald Tattersall, propylbenz- enesulphonic acids, P., 1899, 17. More, Andrew, chemical examination of the oleo-resin of Dacryodcs hcxundra, Moygan, Gilbert Thomas, note on the interaction of formaldehyde with B- naphthylamine derivatives, P., 1899,9.lorrell, fibert Selby, and James Murray Crofts, action of hydrogen peroxide on carbohydrates in the presence of foreigu salts,T., 786 ; P., 1899, 99; discussion, P., 100. ‘r., 718 ; P., 1899,i~o. N. Newbury, Frederick Georgc. See Arthur George Perkin. 0. Ogawa, Mnsataka. See Edward Diverr. Orr, Thomas Workman. See George Orton, Keniiedy Joseph Previtc. See P. Gerald Henderson. Fredcrick D. Chattaway. Peachey, Stanley Johit. See William J. Pope. Perkin, Arthur George, a reaction of some phenolic colouring matters, T., 433; P., 1899, 65. -- the colouring matter of cotton flowers, Cfossypizcm hcrbmmcnt. Not0 on rottlerin, l’., 825 ; P., 1899, 161.- scoparin, P., 1899, 123. Perkin, Arthzw George, and Frederick George Newbury, the colouriug matter contained in dyer’s broom (Benista timtoria) and heather (Caltuna vrclgaris), T., 830 ; P., 1899, 179. Perkin, William Henmj, jun. , oxidation of sulphocamphylic acid, T., 175. Perkin, IVit1ia.m Henry, juii., and Charles H. G. Sprankling, B-alde- 11 ydopropionic acid, CHO*CH,*CH,*COOH, and B-aldehydoisobntyric acid, CIiO*CH,*CH(CH,)*COOH, T., 11 ; P., 1898, 112. Perkin, 7i’i7lia?i~ Hcnry, jun., and Jocelyn Field Thorpe, BB-dimethyl- glutaric acid and its derivatives; synthesis of cis- and trans-caronic acids, T., 48; P., 1898, 107. -- svnthesis of aBB-trimethvl- . . glutaric a&, T., 61 ; P., 1898, 250. COOH*CH(CH,)*C(CH,)2*CH2*COOH, - - experiments on the constitu- tion of isocamphoronic acid, T., 897 ; P., 1899, 184.1186 INDEX OF AUTHORS.Perkin, William Henry, jun. See Havold Allden Auden, H. C. If. Carpenter, TVilliant Gilbody, aud Frederick €I. Lees. Peterkin, James Dysart. See Harold Baily Dixon. Phillips, Percy Phillip. See Raphael Meldola. Pitkeathly, lVillks,t. See Tho?nns Purdie. Pitt, h t h w Zmcst. See John Thcodorc Eewitt, Pollok, , h n e s €Iulm, the thermal effects of dilution, P., 1899, 8. Popa, TVilliana JncXson, crystalline form of iodoform, T., 46 ; P., 1898, 219. - a methodof studying polymorphisin, and on polymorphism as tho cause of some thermal peculiarities of chloral hydrate, T., 455. - the application of powerful optic- ally active acids to the resolution of externally compensated basic sub- stances.Resolution of racemil. cam- phoroxime, T., 1105 ; p., 1899, 199. - dextro-ac- tetrahydro-P-nnph thyl- amine, P., 1899, 170. Pope, William J., and Alfred TVillinm Harvey, homogeneity of clextrolzvo- a-phenethylainine dextrocainphorsnl- phonate, T., 1110 ; P., 1899, 200. Pope, 1Villinnz J., and Stanley John Peachey, the application of power- ful optically active acids to the reso- lution of externally compeiisatcd basic substances, Resolution of tetra- hydroqwinaldine, T., 1066 ; P., 1899, 199. Pope, Wdlliam J., a i d Stnnlcy JoJm Peachey, method of disc:Fat- between “ non-racemic and ?acemic” liquids,T., 1111 ; P., 1899, 201, -- asymmetric optically active nitrogencornponnds. Dextro- and lsevo- benzylphen ylallylmetliyl,zmnio~iinm iodides and bromides, T., 1127 ; P., 1899, 192 ; discussion, P., 192.Pope, lvillinna J., and Edmend Millon Rich, tho application of powerful optically active acids to the resolution of externally compensated basic sub- stances. Resolution of tetrahydro- paratoluquiualdiue, T., 1093 ; l’., 1899, 200. Pope, William Jackqon. See also Frederic Stanley Kipping. Purdie, Tliomns, and Junaes C. Irvine, the rotatory powers of optically active methoxy- and ethoxy-propionic acids prepared from active lactic acid, T., 483; P., 1899, 74. Purdie, Thomas, and William Pitkeath- ly, production of optically active 1110110- and di-alkyloxysucciiiic acids from malic and tartaric acids, T., 153 ; P., 1899, 6. R. Bay, Pmfidln Chnndm, on tho inter- action of mercurous and mercuric nitrites with the nitrites of silver and sodium, P., 1899, 103.Rich, Edmwad Milto,&. See Willinm Jnckson Pope. Rigant, AZbcrt. See TVillianc Robert Lang. Rose, J. L. Rosenheim, Otto, and Philii? Schidrowitz, note on the optical activity of gallo- tannic acid, P., 1899, 67. Ruhemann, Sicyfried, the action of ammonia on ethereal salts of organic acids, T., 245 ; P., 1899, 6. - formatioii of U-pyrone compounds and their transf’orniation into pyridine derivatives, T., 411 ; P., 1899, 55. Ruhemann, SLcyfricd, and AIf?.ed Yulen- t h e Cunnington, condensation of ethylic salts of acids of the acetylene series with ketonic conipouuds, T., 778 ; P., 1889, 169. -- studies of acids of the acetylene series, T., 954 ; P., 1899, 185. Ruhemann, Siccjfriccl, and H. E. Staple- ton, tetrazoline, T., 1131 ; P., 1899, 192 ; discussion, P., 192.Ruseell, EdzccLrd John. See Harold Baily Dixon. Ryan, Hiiyli, synthetical preparation of glucosides, T., 1054 ; Y., 1899, 196. See Harold A . Anden. S. Schidrowitz, P?&ilQ. See Otto Bosen- heim. Schryver, Sa?1zzccl Barnett, preparation ofacici phenylicsalts of dibasicacids, T. 661;P., 1899, 121; discussion, P., 122. Sell, 1Villinm Jams, and Frcclcrick JVilliam Dootson, the chlorine deri- vatives of pyridine. Part 111. Inter- action of chlorine and pyridine hydro- chloricic, T., 979 ; P., 1899, 187. Sell, TVilliam Jmtlx, and Henry Jack- son, synthesis of some derivatives of BP-dipyridyl from citrazinic acid, T. , 507 ; P., 1899, 98. Skirrow, Frederick IViZliam. See JwZiZcs Berend Cohen.INDEX OF 9UTHORS. 8nape, Henry Lloyd, and Arthur Brooke, an isomeride of amarine, T., 208 ; 1’. , 1899, 22. Sonstadt, Edward, note on the action of light on platinum, gold, and silver, P., 1898, 179. Spivey, 1V. T. Newton. See Thomns Barlow Wood. Sprankling, Charles 11. a. See TVillir~nt Aythw Bone ; lVillia?n 1% Perkiqjun. Stapleton, H. 3. See SiEgfried Ruhemann. Steele, B. D. See David Omne Masson. Stern, Arthur Landa.tcer, the nutrition of yeast. Part I., T., 201; P., 1898, 1% Stevens, Ri.nq Potter. See JVillimm B. Chattaway. Sudborough, JoJm Joseph, and Lorcnzo L. Lloyd, ctherification coiistants of substituted acetic acids, T., 467 ; Y., 1899, 2. Sudborough, JoJm JosepJ~ Sec also Szarvasy, Erncripe C., and Carl Mes- singer, a new compound of arsenic and tellurium, T., 597 ; P., 1899, 123. Ll,rc?tzo L. Lloyd. T. Thorpe, Jocelyn Field, and William Udall, the czk- and tra?w@-phenyl- I,utane-aa,a,-tricarboxylic acids, T., 904 ; P., 1899, 184. Thorpe, Jocelyn Field. See 3’. . H. Howles, lVillin?n I f c n q Perkin, Jun. Tickle, Thomas. See JoJm Norman Collie. Trantom, William. See Chnrlcs A. Kohn. U. Udall, JVilliam. See Jocelyn FicM W. Thorpe. Wade, Edward Brisce BeTschel, the chaiiges of volume due to dilution of squeons solutions, T., 254 ; P. , 1899, 7. Wharton, Frederick ifinlcoht. See Pcrcp 3’. Frankland. Whitehead, Xobert J. Gibson. See Geoyge Gcrnld Henderson; Wildermann, Meycr, the velocity of re- actions before complete equilibrium, l’., 1899, 175. Wood, Thomas BrnrIow, TV. T. Ncwto?~ Spivey and Tho~~~as I€&? Easterfleld, cannabinol. Ptirt I., T., 20 ; l’., 1898, 184. Y. Young, Sydncy, action of chlorosul- phonic acid on the parafins and other hydrocarbons as a meaus of purifying the norniol paraffins, T., 172 ; P. 1899, 22. -- the relative efficiency and usefnl- ness of various forms of still-head for fractional distillation, with a descrip- tion of some new forms possessing special advantages, T., 679 ; P., 1899, 147. Young, Syditey, and Emdy C. Fortey, the vapour pressures, specific volumes, and critical constants of hexamethyl- eiie, T., 873 ; P., 1899, 182.