May 7, 1896] 



NA TURE 



Deuconid Calcisponge from the Middle Lias of Norlhamplon- 

 shire" (ibid., vol. iv., 1889, pp. 325-358, i pi.); "On Arch- 

 a'ocyathus, Billings, and on other Genera allied to it, from 

 Cambrian Strata, &c." (Quart, foiini. Gcol. Soc, vol. xlv., 

 1889, pp. 125-148, I pi.); "Notes on Kadiolaria from the 

 Lower I'alauzoic Rocks of the South of Scotland" (Ann. and 

 ilag. Nat. Hist., ser. 6, vol. vi., 1890, pp. 40-59, 2 pi.); 

 " (^n the Sponge Remains in the Tertiar>- Strata, near Oamaru, 

 New Zealand " (in conjunction with Mr. W. M. Holmes), 

 (Linn. Soc. Joiirn. Zool.,\o\. xxiv., 1891, pp. 177-262, with 

 9 pi.); "Note on a Radiolarian Rock from Fanny Bay, Port 

 U.arwin, Australia" (Quart, fourn. Geo/. So,., vol. xlix., 1893, 

 pp. 221-226. 1 pi.). Has paid special attention to the micro- 

 scopic structure of Siliceous Deposits and Cherts, and has 

 demonstrated the existence of Sponges, Radiolaria, and other 

 organisms in them, and as largely composing such deposits, of 

 all ages, and from the most distant parts of the world. 



Hkxrv .A.lex.\nder Mikrs, 



M..\. (Oxon), F.t;.S., F.C.S., Assistant in the Department of 

 .Minerals, British Museum (Nat. Hist.). Has improved the 

 .\dams instrument for the measurement of optic axal angles ; 

 lievised a form of goniometer for measuring the angles of grow- 

 ing crystals ; and a stage-goniometer for use with the micro- 

 scope. Distinguished as a mineralogist and crystallographer, 

 hnd author of important investigations in crystallography and 

 mineralogy, 1882-94, as under: — " Cerussit von La Croix'' 

 Ztitsch. Jiir Krystall., vi.); "The Crystalline Form of Mene- 

 ghinite " (Mineral. Mag., v.); " Hemihedrism of Cuprite" 

 {Phil. Mag., xviii. ); " Monagite from Cornwall and Conncl- 

 lite" (Mineral. Mag., vi. ) ; "Crystallography of Bromostrych- 

 nine " (Journ. Chem. Soc, xlvii.) ; "Crystallography of Tri- 

 cupric Sulphate ' (»V«'(/. ) ; " Orthoclase from Kilima-n-jaro and 

 .\drelavia, .Switzerland " (Mineral. Mag., vii. ) ; " New Cornish 

 .Mineral " (Mineral. Mag. , vii ) ; " Zonenformal fiir Orthogonate 

 Systeme" Zeitsch. fiir Krystall., xii. ) ; "Crystals for Baric 

 Slag" (Journ. Chem. Soc., li.) ; "Use of Gnomonic Projec- 

 tion" (Mineral. Mag., vii.); " Calcites, Egremont, Cumber- 

 land " (/i6/(/., viii.) ; " Pyrargyrite and Proustite " (z'feVj'., viii. ); 

 " Mineralogical Notes— Polybasite, Aikinite, Quartz, Cuprite, 

 .ind Locality of Turnerite" (zV'/V/.) ; " Stephanite and Kaolinite" 

 (i/n'd., ix. ); " Sanguinite (new mineral), Krennerite" (i/iid.) ; 

 " Ullmannite Tetartohedrism " (ihid.) ; "Student's Gonio- 

 meter" (ibid.); " Orpiment " (ibid.,x.); "Cornwall Danalite'' 

 (with G. T. Prior, ibid.); (with W.J. Pope) " Mittheil. aus 

 dem Krystall Laboratorium des City and Guilds of London 

 Inst." (Zeitsch. fur Krystall., xx. ); " Spangolite from Corn- 

 wall (Neties Jahresbr. fiir Min., ii.); " (Juartz from North 

 Carolina" (.Amer. Journ. Sci, xlvi. ) ; " Xanthocanite," i!>:c. 

 (Mineral. Mag., x.); "Spangolite" (ibid., .x.); "On a New 

 Method of Measuring Crystals," i:c. (A'ept. Brit. Assoc, 

 Nature, 1.). 



Frf.dkrick W.alker Mott, 



.M.D. (Lond.), P. R.C.P. Lecturer on Physiology, Charing 

 Cross Hospital. Distinguished as a physiologist. 'The follow- 

 ing are his most important published papers : — " Bacteria, or 

 their Antecedents, in Healthy Tis.sues"' (with Prof. Horsley — 

 /ourn. of Physiol., 18S3); "Myxofibroma of Spinal Cord'' 

 (Prain, 1888); " Cardio-vascular Nutrition and its relation to 

 Sudden Death" (Practitioner, 1888); " Pathology of Pernicious 

 Anaemia" (i/>id., 1890); "Clarke's Column in Man, Monkey, 

 and Dog" (Journ. of Anat. and Physiol.. 1887); "On Eye 

 .Movements produced by Cortical P'aradisation of the Monkey's 

 Brain" (with Prof. Schafer — Brain, i8go, and Internat. Med. 

 Congress, Berlin); "On Movements resulting from Excitation 

 of the Corpus Callo.sum in Monkeys " (with Prof. Schafer — 

 Brain, 1891); "Complete Sclerosis of Colt's Column" 

 (Internat. Journ. of Med. Sci., 1891): "The Results of 

 1 lemisection of the Spinal Cord in Monkeys" (Phil. Trans., 

 1892). 



Supplementary Certificate. — Physiologist and Neurologist. 

 Secretary of the Neurological Society. Pathologist to the 

 London County Council Asylums. Has published the following 

 l)apers recently : — " The Bipolar Cells of the Spinal Cord and 

 their Connections" (/(r(7/'«, 1891); "Ascending Degenerations 

 <if the Spinal Cord" (ibid., 1892); Article on "Pernicious 

 .Kn;vmia" ("Quain's Diet, of Med.," 2nd edit.); "A Case of 

 Multiple Infective Neuritis" (C//H. .Sur. Trans.); "A Case of 



NO. 1384, VOL. 54] 



Amystrophic Lateral Sclerosis with Degeneration of the Motor 

 Path from the Cortex to the Periphery" (Brain, 1895) ; " Ex- 

 ]ierimental Enquiry upon the Afferent Tracts of the Central 

 Nervous System " (ibid., 1895); " The Sensori-Motor Functions 

 of the Central Convolutions of the Cerebral Cortex" (Journ. 

 Physiol., 1894); " Experiments upon the Influence of Sensory 

 Nerve upon Movement and Nutrition of the Limbs" (Prelimi- 

 nary Communication, with Prof. Sherrington, F.R.S.) (Proc' 

 Roy. Soc, vol. Ivii.). 



John Murray, 



Ph.D. (Jena)., LL.D. (Edin.), D..Sc. (Camb.). One of the 

 Naturalists on board the Challenger, 1872-76. First Assistant 

 on the C/«i//ev;^tv Editorial Staff, 1876-82. Editor and Director 

 of the C//i7//(;«i,'(,-;- publications, 1S82-95. Editor of the Reports 

 on the Scientific Results of H.M.S. Challenger; joint Author 

 of the Narrative of the Cruise of the Challenger, and of the 

 Report on Deep-Sea Deposits ; Author of a Summary of the 

 Scientific Results of the Challenger Expedition ; Author of 

 numerous Papers dealing with Oceanography, Physical Geo- 

 graphy, and Marine Biology. 



K.\RL Pe.\RSON, 

 M..\., LL.B., late Fellow of King's College, Cambridge. 

 Professor of Mathematics and Mechanics at University College, 

 London. Editor and joint Author of vol. i. of Todhunter's 

 " History of Elasticity." Author of the following papers on 

 Elasticity :—" On the Distortion of a Solid Elastic Sphere'' 

 (Quart. Journ. Math., vol. xvi.) ; "On Twists in an Infinite 

 Elastic .Medium" (Mess, of Math., vol. xiii.); " On the Flexure 

 of Heav7 Beams" (Quart. Journ Math., vol. xxiv.); "On 

 the Generalised Equations of Elasticity, and their Application 

 to the Wave Theor>- of Light" (Proc. Lond. Math. Soc.,vo\. 

 XX.) ; "On Energy in an Elastic Solid" (Mess, of Math., 1S89) ; 

 " On Wiihler's Experiments on Alternating Stress " (ibid. , 1890) : 

 also " Contributions to the Mathematical Theory of Evolution" 

 (Phil. Trans., 1894). 



Thom.\s Roscoe Rede Stebbing, 



M.A. (Oxon.), B.A. (Lond.). Clerk in Holy Orders. Late 

 Fellow and Tutor of Worcester College. Author of Report on 

 the Amphipoda collected by H.M.S. Challenger, a task which 

 has occupied him almost exclusively for six years. It forms 

 three large volumes (vol. xxix. of the Report), and consists 

 of 1774 pages, and 212 plates, with a map, 4to, 1888. (The 

 figures were all drawn by the author.) Also author of the 

 following: — "Note on Calceola sandalina, Lmk." (Geol. Mag., 

 vol. X., pp. 57-61, pi. v., 1873) ; " .\ New Species of Sessile- 

 eyed Crustaceans" (Ann. and Mag. Nat. Hist., ser. 4, vol. 

 xvii.,pp. 73-80, pi. iv.-v., 1876) ; " Amphipodous Crustaceans 

 (Hyale,Aronyx, &=c.)" (ibid., pp. 337-346, pi. xviii. -xix., 1876); 

 " Some New and little-known .\mphipodous Crustaceans " 

 (ibid., vol. xviii., pp. 443-449. pis. xix.-xx., 1S76) ; "On 

 Sessile-eyed Crustaceans" (ibid., .ser. 5, vol. I., pp. 31-37) pl- 

 v., 1878); "On Species of Amphipodous Crustaceans" (Hid., 

 vol. II., pp. 464-370, pi. XV., 1878); "The Sessile-eyed 

 Crustaceans of Devonshire" (Trans. Dez'on. Assoc, vol. xi., pp. 

 516-524, 1879) ; "On Gastrosaccus spinifer" (Ann. and Mag. 

 Nat. Hist., ser. 5, vol. vi., pp. 1 14-1 18, pi. iii., and p. 328, 

 1880); "-A. New English Amphipodous Crustacean" (ibid., 

 vol. .XV., pp. 5S-62, pi. ii., 1885); " On the Crustacea Isopoda 

 of the IJghtning, Porcupine, and Valorous Expeditions" (joint 

 paper with the Rev. A. M. Norman. Trans. Zool. Soc, 1886,. 

 vol. xii., pp. 77-142, pis. xvi.-xxvii.) ; "Exotic Amphipoda 

 from Singapore and New Zealand" (ibid., vol. xii., pp. 199-220, 

 pis. xxxviii.-ix.) ; Address as President of Devonshire A.ssoc. 

 (Trans. Devon. Assoc, 1884). 



Supplementary Certificate. — Author of "The Naturalist of 

 Cumbra; ; being the Life of David Robertson, F.L.S., F.G.S. , 

 by his Friend" (1S91)'' "The right Generic Names of some 

 Amphipoda" (Ann. and Mag. Nat. Hist., 1890) : "Sessile-eyed 

 Crustaceans" (ibid., pi. xv.-xvi., 1S91); "On the genus 

 Urotha: and a new genus Urothoidcs" (Trans. Zool. Soc, pi. 

 i.-iv., 1891); "A History of Crustacea" and "Recent Mala- 

 costracece" (1893) ; "A New Pedunculated Cirripede '' (-"'""■ 

 and Mag. Nat. Hist., pi. xv., 1S94) ; "The Amphipoda col- 

 lected during the Voyages of the il'itlem Barents in the Arctic 

 Seas in the Years 1880-84" (Soc Nat. Art. Mag., Amsterdam,^ 

 1894, pi. i.-vii.); "On the Amphipoda of the Buccaneer"^ 

 (Zool. Soc Trans., iSgs, pis. i. iv.); "Notes on Crustacea'" 



