40 + 



NATURE 



Lehrbuch der Palaozoologie. By Prof. E. F. 

 Stromer v. Reicheiibach. II. Teil, Wirbeltiere. Pp. 

 viii + 325. (Leipzig and Berlin: B. G. Teubner.) 10 

 marks. 



Die erklarende Beschreibung der Landformen. By 

 Prof. W. M. Davis. German edition by Dr. A. Riihl. 

 Pp. xviii + 565. (Leipzig and Berlin : B. G. Teubner.) 

 II marks. 



Lehrbuch der Physik fiir Mediziner und Biologen. 

 By Prof. E. Lecher. Pp. vii + 451. (Leipzig and Ber- 

 lin : B. G. Teubner.) 8 marks. 



The Doctor's Dog : a Poem against Vivisection. 

 By R. Daillev. Pp. '62. (London :' G. Allen and Co., 

 Ltd.) !.<;. net. 



Index Zoologicus. No. II. Compiled (for the 

 Zoological Society of London) by C. O. Waterhouse 

 and edited bv D. Sharp. Pp. iv + 324. (London : The 

 Zoological .Society of London.) 15.V. 



The Principles of Applied Electrochemistrv. Bv Dr. 

 A. J. Allmand. Pp. x+547. (London: E. Arnold.) 

 i8s. net. 



Electroplating. By W. R. Barclay and C. H. Hains- 

 %vorth. Pp. viii + 3g9. (London: E. Arnold.) 7s. M. 

 net. 



Astronomy. By G. F. Chambers. Pp. xxiv+272 + 

 plates. (London : Hutchinson and Co.) 5s. net. 



The Infancy of .Animals. By W. P. Pycraft. Pp. 

 xiv + 272 + plates. (London: Hutchinson and Co.) 6s. 

 net. 



The Essentials of Physics. By Prof. G. A. Hill. 

 Pd. viii + i;46. (London: Ginn and Co.) 55. 



Elementary .Applied Chemistry. By L. B. Allvn. 

 Pp. xi+127. (London: Ginn and Co.) 3s. 



New .-Analvtic Geometry. By Profs. P. F. Smith 

 and A. S. Gale. Pp. x + 342. (London : Ginn and 

 Co.) 6.S-. 6rf. 



Davtime and Eveninir Exercises in .Astronomv. Bv 

 Dr. S. F. Whiting. Pp. xv+104. (London: Ginii 

 and C0.I 3s. dd. 



The Scientist's Reference Book and Diarv, iqiv 

 (Manchester : J. Woolley, Sons and Co., Ltd.) 



k Course of Elementary Practical Physics. Bv 

 H. V. S. Shorter. Part i., pp. iii; part ii., pp. 216. 

 (Oxford : Clarendon Press.) 2,';. and 3s. respectively. 



The "Wellcome" Photographic Exposure Record 

 and Diarv. 1013. (London : Burroughs, Wellcome 

 and Co.) 



DIARY OF SOCIETIES. 



THURSDAY, I)ECFMr,FT! 5. 

 ?OVAL Society, at 4.30.-.'^ Gre^aiine, Stcinina lohi'niata, nov. sp., 

 present m the Mid-gut of Bird Fleas of the Genus Ceritophyllus : T)r. 

 T. H. .Ashworth and Dr. T. Retlie.-(,) The ,Si,e of the Aorta in W.irm- 

 and Its Relationship to the Body Weiglit and to the 

 ■ ■ a Formula ; (q) The Siz- of the Trachea in 

 i its Rel.ationship to the Weight, the .Surface 

 nd the Size of the Aorta : Prof. G. Dreyer, 

 -Studies of the Processes Operative in 

 I \ii.[[Hi]ii. Gyanate into Urea, especially 

 iV .1 ., I iTheHydrolysisof Cane Sugar 

 ' ! fi. Sugar by Sulphuric Acid, with 

 ' n M. Apparatus ; (4) The Hydrolysis 

 . P. Woil^y ; (5) The Nature of Hydro- 

 strong and F. P. Worley.— The Direct 

 of Characteristic Rontgen Radiations by Kathode Particles ; 

 ;ly-— Xhe Penetrating Power of the y Rays from Radium 

 ' ': Beh.aviour of Iron in the Active 

 -A Determinptionofthe Radiation 



blooded An 



Surface .^rea express* 



Warm-bloodud Anima 



Area, the Blood Volu 



W. Ray, and E. W. A. W;dl;, 



Solutions. (r)TheConv,i , 



as Influenced by.AlcohoU : 1 



by Dilute Acids; (3) rhe 111 



a Note on Iniprovenieiits m 



of Methylic Acetate by Acids 



lytic Process : Dr. ' " 



Productiot 



Dr. R. T. , 



Photo-elfCtri 

 and Passive State: Dr. H. S. Allen. 



Constant: H. B. Keene. -Physiological Observ.itions made on Pike's 

 Peak. Colorado, wiih Special Refere.ice to Adaptation to I.oiv Barometric 

 Pressures : C. G. Douglas. Dr. J. S. Haldane, Y. Henderson and E. C. 

 Schneider.— Notes on the Life History of Trytaiiosonm mmiifitse. with 

 a Brief Reference to the Cycles of Trvpaiwsoma >ian,i<u and Trrtnio- 

 soiiiaficcomm in Glossina (nlpalis. : Muriel Robertson. 

 .INNEAN SociETV, at S.— Noles on Two Orchids New to East Sussex, 

 and on several R.arer Species of I irchidacea: : E. I. Bedford.-The 

 Hebridean Diagona described as ■' Syntethys," and other Exhibits from 

 tl^ie Cruise of the S.Y. Kumi in 1912: Prof. W. A. Herdman.— Nature 

 Camera Work, an Attempt t» Combine Photography with Drawing in 

 ;s Maud Umfreville Clarke.— Coloured Drawings of 

 i Mary W. Johnstone. 



NO. 2249, VOL. 90] 



SOCIETV OF DVEK* 



Sheep Skins and i 



[December 5, 1912 



AND CoLOL'RlsT.s, at 7.30. — The Fellmongering of 

 s Bearing on Leather Dyeing : M. C. Lamb. 



MONDA K, December 9. 

 Arts, at 8. — Methods of Economising Heat : C. R. 



n the Theory of 



Baker), postponed 



the Functions or 



of the Theory of 



lerated Mo ' 



Royal Socii 



Darling. 



TUESDAY, December 10. 

 Royal Anthropological Institute, at 8.30. — .Ancient and Modern 



Nubas: D. E. Derry. 

 Institution of Civil Engineers, at 8.— The Generation and Distribu- 

 tion of Producer-gas in South Staffordshire : H. A. Humphrey. 

 Faraday Society, at 8. — The Electromotive Forces of Concentratioa 



Cells : Principal A. P. Laurie. 



WEDNESDAY, December 11. 

 Royal Society of Arts, at 8.— Natural and Synthetic Rubber : Dr. F. 



Mollwo Perkin. 

 AiiKONAUTlCAi. Society, at 3. 30.— The Mathematical Theory of .Aeroplane 



Stability : E. H. Harper. 



THURSDAY, December i: 

 Mathematical Society, at 8.— Recent Advanc 



Surfaces. Address by the ex-President (Dr. H. 



from the November Meeting.— A Connection bet 



Hermiteand lacobi : H. E. J. Curzon.— The Equ 



Electrons Tr.insformed Relative to a System in 



H. R. Hassc'.-The Convergence of Series of Orthogonal Functic 



E. W. Hobson. -The Determination of the Nature of a Function from a 



Knowledge of One of its Derivatives : W. H. Young.— Mersenne's Primes : 



I. McDonnell. 

 Institution of Electrical Engineers, at 8. — A Single Phase Motor 



with Pole Changing Windings : J. S. Nicholson and B. P. Haigb. 

 Royal Society of Arts, at 4.30.— Delhi, the Metropolis of India : Sir 



Bradford Leslie, K.C I.E. 

 Concrete iNSTirurE, at 7.30. — The Effects on Concrete of Acids, Oils and 



Fats: Robert Cathcart and Laurence"Gadd. 



FRIDAY, December 13. 

 Royal Astronomical Society, at 5. 



CONTENTS. PAGE 



The Metabolism of Lepidopterous Pupae. By 



F. A. D 379 



Sylvester's Mathematical Papers. By G. B. M. 379 



Philosophy of Nature. By A. E. Crawley 380 



Our Bookshelf 381 



Letters to the Editor:— 



The Mor.n and Poisonous Fish. — D. E. Hutchins . 382 

 What the Ihilish Caves might tell us. — W. J. Lewis 



Abbott " 382 



The Application of Optical Methods to Technical 

 Problems of Stress Distribution. (//Iinliated.) Bv 



Prof. E. G. Coker '.383 



The 'Warfare against Tuberculosis. By R. T. H. . 586 



Report of the Government Chemist 387 



Anniversary Meeting of the Royal Society .... 387 



Notes 389 



Our Astronomical Column : — 



Radium in the Chromosphere 393 



Observations of Jupiter 393 



The Discovery of Gale's Comet, 191217 394. 



A Slav Calendar 394 



The .Spectroscopic Binary & .Scorpionis 394 



Medical Research and Public Health 394 



Geography at the British Association 395 



Physiology at the British Association. P,y Dr. H. E. 



Roaf 395 



Agriculture at the British Association 397 



The Paktte of the Illuminator from the Seventh 

 to the End of the Fifteenth Century. ISy Dr. 



A. P. Laurie 399 



University and Educational Intelligence 399 



Societies and Academies • . 400^ 



Books Received 403 



Diary of Societies 404 



Editorial and Publishing Offices : 



MACMILLAN & CO., Ltd., 



ST. MARTIN'S STREET, LONDON, W.C. 



Advertisements and business letters to be addressed to the 



Publishers. 



Editorial Communications to the Editor. 



Telegraphic Address: Phusis, London. 

 Telephone ti umber : Gerr.^rd 8830. 



