32 



x.irrA'/-: 



[May 9. 189; 



mination of the Pollen-grain and the Nutrition of the Pollen- 

 tube" {PAiJ. Trans., 1894) ; "On Vt.t;etable P'erments" 

 (Annals of Botany, vol. vii., 1S93) ; "On the Influence of Light 

 on Diastase" (ibid., vol. \iii., 1S94). 



Ernest Howard Griffiths, 



M.A. Private Tutor. .Vnthor of the following papers: — "On 

 the Comparison of Platinum Tem|)eraturcs with the Kew 

 Standard (Rept. of Committee (m Electrical Mc-isurenients, 

 Brit, .\ssoc., l8qo): "On the Detennination of certain Boiling 

 and Freezing Points " (/•.*»/. Trans., 1891 \); "The Electrical 

 Resistance of Platinum Wire at .Absolute Zero" (/%//. Afag., 

 Dec., 1892) ; " On the Determination of Low TemiK-ratures l)y 

 Platinum Thermometers" (Proc. Camb. Phil. Soc, vol. viii.. 

 Part I.); "On the Increase in Resistance of a Conductor when 

 Transmitting a Current" (ibid., vol. viii.. Part 1.): "The 

 Mechanical Equivalent of Heat, together with an Investigation into 

 the Changes in the C^ipacity for Heat of Water" (/'/;//. Trans., 

 1893 A); "The Hoiling Point of Sulphur, together with a 

 .Metho<l of Standardising Platinum Thermometers," jointly with 

 Mr. Callen.lar (/»*//. Trans., 1891 A). 



StippUnutilary Cfr/z/fra/c— .\ppendix to the communication 

 entitled "The Mechanical Equivalent of Heat" (Proc. Koy. 

 Soi., vol. Iv., 1893); " .\. Method of Joining Cd.ass and Metal 

 Tul)es" (PrOi. PAH. So,-. Camb., 1893) ; " The Measurement of 

 Temperature" (Science Progress, 1894); "The Influence of 

 Temperature on the Specific Heat of Aniline" (PAH. Mag., 

 1895); "The Latent Heat of Evaporaticm of Water" (read 

 Ro)'al Society, January 1895). 



Ch.vrles Thom.xs Hkvcock, 



M..\., Lecturer on Natural Science, King's College, Cambridge. 

 .\uthor of " Revision of the .\tomic Weight of Rubidium " 

 (Brit. Assoc. Rept., 1882); joint author of :— " S]x;ctrum of 

 Indium" (PAH. Afag. [5] I., 1876) ; "On a Simplified Form of 

 -Apparatus for Determining the Density of Ozone" (Proc. Camb. 

 PAH. Soc, V.) ; " Lowering of the Freezing Point of Tin by the 

 .Addition of other Metals" (Proc. Chem. Soc, No. 65, 1889) : 

 " Lowering of the Freezing Point of .Sodium by the .Addition of 

 other Metals" (Trans. Chcm. Soc, Iv., 1889); "Molecular 

 Weights of Metals when in .Solution" ibid. (Ivii.): "Freezing 

 Point of Triple .MIoys of Oold, Cadmium, and Tin " (ibid., lix. ) ; 

 " Lowering of the Freezing Points of Cadmium, Bismuth, and 

 Lead, when alloyed with other Metals" (ibid., Ixi.) ; " Isolation 

 of a Compound of dold and Cadmium" (ibid.); "Freezing 

 Point of Alloys in which Thallium is the .Solvent " (ibid., 1894) ; 

 "Freezing Point of Triple .Alloys" (ibid.); "Change in the 

 Zero of Mercury Thermometers" (Proc. Camb. PAH. Soc, vii.). 



SVDNKV John Hickson, 

 D..Sc. (I-ond.), .M.A. (Cantab.), Hon. M.A. (Oxon.), F.Z.S. 

 Fellow of Downing College, Cambridge. .Author of ixipers 

 published in the PhilosopAical Transactions, "On the Cdiated 

 GrfKjve (.Siphonoglyphe) in the .StonnMlaum of the -Alcyonarians " 

 (1883) : " On the .Sexual Cells and Early Stages in the Develop- 

 ment of MilUpora plicata " ( 188S). In the Qnart. foiirn. Micros. 

 Sci., "The Eye of Pectcn " (1880); "The Eye of Spimdylus" 

 (1882); " The Structure and Relations of Tubi|iora " (1883); 

 "The Eye and Optic Tract of Insects" (1895). '" •''*^ 

 TijdscAr. van Art Nrdcrl. Aarcirijkskund. GenootscA. , " Onizwer- 

 vingenin No<jrdCelcl>es " (1887). In \\k Jourii. .InlArop. Inst., 

 "Notes on the Sengirese " (1886I. Author <if the work, ".A 

 Naturalist in North Celelies." 



Hknkv Capki. Lokft Hoiukn, 



Major, Royal Artillery. In India from 1S77 S4, he carried out 

 a numlier nf experiments in telephony an<I telegraphy for the 

 Indian Oovernment. Since 1885 he has lieen in charge of Ihe 

 l)e|iarlment for the proofs of Naval and I-and .Service Ordnance, 

 and tiunpowders, an<l for exjKTiinent work connected therewith, 

 and has invenlcil and construcle'l ir.^ny pieces of ap|>aratus cnn- 

 necte^l with the science of artillery, .is well as with electrical and 

 scientific rcscjirch. .Amfmgst those which have been publicly 

 cxhibitol are his devices in connection with the chronograph, 

 for measuring the velocity of projectiles ; an extremely accurate 

 and sensitive hydrometer for me.-Lsuring the variations of Ihe 

 density of the .icids in Ihe eliclrolyle accumulator cells (exhibited 

 Royal Society, 18X7 ; ve :ds'i i«|>er before Iron .inil Sleel Insl., 

 1891); a hifjh-specd chrom (graphic [>en for recording minute 

 intervals of time by eleclrom.ignelic mejins ; various instruments 



NO. (332. VOL. 52] 



for making accurate and rapid tests of the pressure and current 

 in direct current circuits, and in alternating current circuits of 

 both high and low fre<|uency (some exhibited Royal SiKiety, 

 1892); an instrument for rapidly ascertaining the E. M.F. and 

 resistance of a galvanic cell (exhibited Royal Society, 1893) ; a 

 compact moving coil galvanometer adapted to univcrsiil purposes, 

 which was employed by Profs. Dewar and I'Icming in their 

 researches on the resistance of metals, and is used in the record- 

 ing pyrometer of Prof. Roberts- .Austen. He w.is deputed by 

 the Commander-in-Chief to write the electrical sections of the 

 Paris Exhibition of 1SS9, the Frankfort Exhiliition of 1S91, and 

 the Chicago Exhibition of 1893, and furnished the Ciovcrnment 

 with most valuable reports. 



Frank McCle.an, 



M.A., LL.D. (t;i.-i.sg.), F.R..A.S., M.I.C.E. Author of " Photo- 

 graphs of the Red End of the .Solar Spectrum from D to .A ' 

 (MontA/y jVoticcs, vol. xlix. ) ; " Parallel Photographs of the Sun, 

 Iron, and Iridium, from 11 to near n' (ibid.) ; "Comparative 

 Photographs of High and Low Sun II to .\, with N(^tes on the 

 Mcthiul (if Photographing the Red End of the .Siiectrum " (ibid., 

 vol. li. ) ; " Comjxirative Photogra()hsof Sun antl Metal Spectra" 

 (.Series I and 2, ibid., vol. lii.). Inventor of McClcan's Star 

 Spectroscope, an invaluable aid in the stiuly of stellar spectra. 

 .Attached to .science, and anxious to promote its progress. 

 Fiiunder of the !s;iac Newton Scholarship at Caudiridge. Don<^r 

 of a large telescope to the nation, to be used in physical 

 inquiries at the Royal Observatory, Oipe of (iood Hope. 



WlI.l.IAM MacEwEN, 

 M.D. (Clasg.), Hon. LL.l). ((dasgow). Profe.s.sor of Surgery, 

 University of Clasgow. .A distinguished Surgeon. Author of: — 

 " (Observations concerning Transplantations nf Bone, tVc." (Proi. 

 Koy. Soc, May 1881, and Comptcs rcndiis .Acad. Sci., Paris, 

 June 1881); "Treatise «m Osteotomy" (Londim, 1S80 ; trans- 

 lated into French, German, Italian, Roumanian. Swedish and 

 Russian) : " Osteogenic Factors in the Development and Re|)air 

 of Bone" (.Innals of Surgery', 1887) : .Address nn the .Surgery of 

 the Brain and Spinal Cord (Lancet, and Pril. Med. /oiirn., 

 1888): ''The Pupil in its Semiological Aspects" (Internal, 

 foutn. of Med. Sciences, 1887); "Radical Cure of Hernia" 

 (.Inna/s of Snrgery, 1886) ; also numerous articles on special 

 points in .Surgery. 



.Supplementary Certificate. — .Author of a treatise on Pyogenic 

 Infective Diseases of the Brain and .Spinal Cord (1893): an .Atlas 

 of Head Secti<ms, with fifty-three cojiper ]»]ates. fifty-three key 

 pKates and descriptive text (1893). Especially distinguishcil for 

 his work on the Surgery of the Bones and in the DeveIo]imeni 

 and Practice of the .Surgeiy of the Brain and .Spinal Cord. 



SiDNFv Martin, 



M.l )., U.S.. B.Sc, F.R.C.P. .\ssistant Physician, University 

 College Hosjiital, and H()spital for Consumjition, Brompton. Dis- 

 tinguished for researches in chemical physiology and pathology ; 

 has carrieil out researches on chemical bacteriology for the Local 

 Ciovernnient Bnaril.and for Ihe Royal C<ininiissic)n on Tuberculosis. 

 The folU>wing are his principal published pa|)crs ; " Pajiain 

 Digestion " C/oiini. of Physiol., v.) : " Nature of Papain and il^ 

 action on \'egelable I'rotuids ' (ibid., vi. ) ; " The I'roleids of the 

 .Seeds of Alirns frecatorius'^ (Proc. Koy. Soc, xlii.); " Phy.sio- 

 logic.al Action <if the .Active Principle of .Ibrus piecatorius" 

 («*/'(/., xlvi.) ; "The Toxic Actiim of Ihe Albumose from the 

 SgcA^ oi .-ibrns precatoriiis'^ (ibid.) ; " Cduten and the IVoteids 

 of Flour" (/^r/V. J/.y/. /,.«;•/;.. 1886); "The Influence of Bile on 

 Digestion " (with Dr. I). Williams -/"/w. Koy. .Sm. , xlv. and 

 xlviii.): "The Chemical Products of the (Irowlh <>( PacHliis 

 antbracis and iheir Physiological .Aclicm " (ifiiil., xlviii.): 

 " Preliminary Re|>ort on Ihe Chemical Products of Ihe Life of 

 HacHlns antAracis" (Kept, of the Med. Officer, Local Covl. 

 Board, 1889 90); "Chemical Pathology of Anthrax" (ibid., 

 1891): " Diphlheritic Paralysis" (Troc. Koy. .Soc, 1892) : 

 "(odslnnian l.ecUires on Ihe Chemical Palholngy of Diphtheria 

 com|Nired with that of Anlhrax, Infective I'-ndocarditis and 

 Tetanus." 1892 : "Two Classes of Vegetable Chibulins" 

 (/'rn. PAvsiol. .Soc) ; " Palholi.gy cflhe Proteids of Ihe Body" 

 (Urit. Med. fourn.. 1890). 



('•EOKOE M. MiNtlllN. 

 M.A. (Dubl.), l'rofes.sor of Mathematics in the Royal Indian 

 Engineering College, Cooper's Hill. Author of the following 

 treatises: — ".Statics," " Uniplanar Kinematics," and "Hydro- 



