^6 



NA TURE 



[May 17, 1894 



or Taning-fotk " (;V^/.y.) ; " Suggestions towards a Delermina- 

 tion of the Ohm." Read before the Briliih Assodation at 

 Leeds, iSgoC'The Electrician," vol. xxv.). 



Augustus Edward Hough Love, 



Fellow of St. John's College, Cambridge. Lecturer in Mathe- 

 matics. Author of the following papers of merit, connecied 

 with mathematics : — " On recent English Researches in Vortex 

 Motion" iMath. Ann., vol. xxx., 1SS7) ; "On Dedekind's 

 Theorem concerning the Motion of a Liquid Ellipsoid under its 

 own Attractions" (Phil. Mag., 1S8S1 ; "The small Free Vibra- 

 tions and Deformation of a Thin Elastic Shell " (Phil. Trans., 

 1888) ; "On the Motion of a Liquid Elliptic Cylinder under its 

 own Attraction," and " The Oscillations of a Mass of gravitat- 

 ing Liquid in the form (fan Elliptic Cylinder which rotates as 

 if rigid about its axis" (Quart. Journ. Math., 1888); "The 

 Free and Forctd Vitrations of an Elastic Spherical Shell con- 

 taining a given Mass of Liquid " (Prnc. Lond. Math. Soc. , vol. 

 xix., 18SS) ; "The O.-cillation ol a Rotating Liquid Spheroid, 

 and the Genesis of the Moon " (Phil. Mag., iS8o) ; "Vortex 

 Motion in certain Triangles" (Amer. Journ. .Math., 1S8S); 

 " The .Motion of a Solid in a Liquid when the Impulse reduces 

 to a Couple" (Proc. Phil. Soc, Camb., 18SS) ; "On the 

 Equilibrium of a Thin Elastic Spherical Bowl" (Proc. Lond. 

 Math. Soc, vol. xx., 1S89); "On Sir \V. Thomson's Estimate 

 of the Rigidity of the Earth" (Trans. Phil. Soc, Camb., vol. 

 XV., 1890); " Note on the Present State of the Theory of Thin 

 Elastic Shells" (Proc. Roy. Soc, vol. xlix., 1891); "Wave 

 Motion in a Heterogeneous Heavy Liquid "(Pioc. Lond. Math. 

 Soc. vol. xxii., 1891); "On the Theory of Discontinuous 

 Fluid Motions in two Dimensions" (Proc. Phil. Soc, Camb., 

 vol. vii., 1891}. 



RiCH.ARD LyDEKKER, 



B. A. (Camb.). Formerly on the Geological .Survey of India. 

 Distinguished for his acquaintance with the science of Paleon- 

 tology. .Vulhor of a .series of illustrated quarto memoirs on 

 the Tertiary and Post- Tertiary Vertebrata of India, " Falitoit- 

 tolflgica /iiJica" {}Aemo\rs Geol. Surv. India, 1876-86); also 

 a part of the Mesozoic Vertebrata of India {ibiil.) ; of " Cata- 

 logue of the Fossil .Mammalia in the British Museum," in five 

 parts (1885-87), of "Catalogue of the Fossil Reptilia and 

 Amphibia," now in course of publication ; and of many papers 

 on Palxontulogical subjects to the <,)jart. Journ. Geol. Soc, 

 Proc. Zool. Soc, ic 



Supplementary Certificate. 



Author of : — British .Museum Catalogue of Fossil Reptiles, 

 4 vols. ; British Museum Catalogue of Fossil Birds ; Vol. II. 

 (Vertebrates) of Nicholson and Lydekker's Manual of Palaeon- 

 tology. Joint author, with Sir W. IL Flower, of "The Study 

 of Mammals " ; a monograph of the Extinct .\rgentine Dino- 

 saurs ; Cetaceans and Ungulates in the La Plata Museum ; and 

 numerous minor papers. 



Francis Cranmer Penrose, 



M.A., F.R.T.B.A.,F.R.A.S. Honorary Fellow of M.agdalene 

 College, Cambridge. Architect. Surveyor 10 the Fabrick of 

 St. Paul's Cathedral. Late Director of the British Aichoeo- 

 logical .School at Athens. Author of books or memoirs on (1) 

 "Principles of Athenian Architecture," 1851 ; (2) "On the 

 PreJiciion and Reduction of Occuliations of Mars and Eclipses 

 by a Graphical Process," 1869; (3) "On the Deteimination 

 of the Elements of the Orbits of Comets by Graiihical Pro- 

 cesses," Monthly Notices, 1881 ; (4) "Two papers on the 

 Ancient Hccatompedon, Athens," 1891 and 1893; (5) "On 

 the Orienialion of Greek Temples and ihe Amplitudes of Stais 

 al the time of the Foundation of the Temples, ' Phil. Trans,, 

 1893. Observer of the Total Solar Eclipses of 1870 and 1878. 

 loveolor of inttruments for drawing the Logarithmic Spiral ; 

 for drawing the Hy|)erboU by continued motion parallel to the 

 Aiymptotci ; for the Mechanical Solution of Spherical 

 Triinjiles, &c. 



DUKINFIELD HeNRV SCOTT, 



Ph.D. (Wiiri'iuri:). F.L.S. Honorary Keeper of the Jodrell 

 Laboratory, Royal Gardens, Kew. Dr. Scott is a person 

 attached to science and anxious to promote its progress. He is 

 didinguishel for his acquaintance with Bxtany, and has made 

 discoveriet in that branch of science which have been pub- 

 lisheil in the following papers : " Entwickelungsgeschichle der 



^o. 1 28 1, VOL. so] 



gegliederlen Milchiohren" (Inaug. Dissert., Wurzburg, 1881, 

 published in .Arbeilen des jiot. Instituts, Wurzburg, 1881 ; 

 translation in Quart. Journ. Micios. Sci., 1S82); "OntheLati- 

 ciferous Tissue of Manihot Glaziovii " (Qaart. Journ. Micros. 

 Sci., 1884); "On ihe Occurrence of Articulated Laliciferous 

 Vessels in Hevea " (Journ. Linn. Soc, Botany, 18S5); "On 

 ihe Nuclei of Oscillaria and Tolypothrix " {iiid., 1S87) ; with 

 Mr. Wager, "On the Floating Tissues of Ses/>ania aculeata" 

 (Annals of Botany, I., 18SS); with Mr. Hrebner, "On the 

 Anatomy and Histogeny of Strychtios" (.Annals of Botany, 

 III., 18S9) : "On seme Points in the Anatomy of Ipomcua 

 versicolor (Hi J., v., 1 891); with Mr. Brebner, "On Internal 

 Phloem in the Root and Stem of Dicotyledons " (//'»</.); "On 

 the Secondary Tissues in Certain Monocotyledons" [iliid., vii., 

 1893); with Miss Sargant, " On the Pitchers of Dischidia 

 Kaffleiiana{ibiJ.). Dr. Scolt is also the £uthor of many bo- 

 tanical reviews, note?, &c. He co-operated with Prof. Bower, 

 F. R. S., in the preparation of the English edition of De Bary's 

 "Comparative .-\nalomy of Phanerogams and Ferns" (Oxford, 

 1884) ; and with Prof. Howes in the preparation of the new 

 edition (1SS8) of Huxley and Martin's "Elementary Biology.'' 

 From 18S2-85 Dr. Scott was .Vssistant to the Professor of 

 Bolany at University College, London, and was from 18S5-92 

 -Vssistant Professor in Biology (Botan)) at ihe Royal College of 

 Science, South Kensington, a position which he resigned to 

 take up that which he at present occupies at the Royal Gardens, 

 Kew. 



Rev. Frederick John Smith, 



Clergyman of the Church of England. Millard Lecturer in 

 Experimental Mechanics, Trinity College, Oxford. Distin- 

 guisheil for his researches in practical mechanics and physics, 

 and the invention of important dynamometiic and integrating 

 instruments ; also of the chronograph — registering graphically 

 periods o( lime from 00005 sec. 'o ' '° s^<^- — "°^*' "^'^'^ "" '''' 

 measurement of the flight of projectiles and in physiological 

 research. .Vulhor of numerous |)apers, among which may be 

 mentioned: — "An Experimental Investigation of the circum- 

 stances under which a Change of the Velocity in the Propaga- 

 tion of the Ignition of an Explosive Gaseous Mixture takes 

 place in Closed and Open Vessels. Part I. — Chronographic 

 Measurements" (Proc. Roy. Soc, vol. xlv., 1889); "De- 

 scription of Dynamometer and Integrator for measuring the 

 work done in Driving Dynamos and other machines " (Electri- 

 cian, iSSi); " Ergometer or work measuring machine" (Phil. 

 Mag., vol. XV., 1SS3, and Natire, vol. xxx.) ; "A new form 

 of Electric Chronograph (Phil. .Mag , vol. xxix., 1890) ; "On 

 some new Methods of investigating the Points of Recalescence 

 in Steel and Iron " (i7'i</., vol. xxxi., 1S91); "On some of the 

 Effects of Magnetism on Rods of Iron, Nickel, and other 

 Metals which have received a Permanent Torsional Set " [ibid., 

 vol. xxxii., 1891). 



Jo.sErii Wii.soN Swan, 



M.A. (/jo«<'r/j cawja) Duiham. F.C.S. F.I.C. Has devoted 

 himself for many years with great success to expeiimenlal 

 scientific work, chiefly in relation to Elcctiic Lighting, the 

 Electro-deposition of Metals, and the Im|iiovcment of Photo- 

 graphic Processes. His labours have resullcd in mateiial 

 extension of knowledge, and in important inventions, among 

 which are the Incandescent Electric Lamp, the Carbon Process, 

 by which the first permanent photographic prints were pro- 

 duced and which has formed the basis of many processes of 

 photo mechanical engraving (in this relation the property of 

 salts of scsquioxide of chromium to combine with gelatine 

 nnd render it insoluble was discovered), the highly sensitive 

 (lelalino bromide Photographic Plate, the result of an original 

 observation of the effect of heat on the gclatinobromide of 

 silver emulsion, the Cellular Form of Electrical Secondary 

 Battery Plate, the production of Lamp Filaments from Solu- 

 tions, Integrating Electric Meters, S.ifciy Lamp for Miners, and 

 an Electric Firedamp Indicator. 



Victor Huhert Velev, 



M. A., F.C.S. Lecturer on Chemistry. Author of the following 

 papeis: " On the Oxides of Manganese .md their Hydrates" 

 (Part I., Chem. Soc Journ., 18S0; Part II., >7';</., 1882) ; 

 "On the Rale of Decomposition of Ammonium Nitrate " [ibtd., 

 1883); "On some ."sulphur Compounds of Calcium" (ibid., 

 1885); "On Ihe Lime Process lor the Purification of Coal 



