20 



NATURE 



[March i, 1917 



BOOKS RECEIVED. 



• The Vaporizing of Paraffin for High-Speed Motors 

 (Electric Ignition Type). By E. Butler. Pp. vi+120. 

 (London : C. Griffin and Co., Ltd.) 35. 6d. net. 



A Text-Book of Histology. By Dr. H. E. Jordan 

 and Dr. J. S. Ferguson. Pp. xxviii+799. (London 

 and New York : D. Appleton and Co.) 15-"?, net. 



Horses. By R. Pocock. With an Introduction by 

 Prof. J. Cossar Ewart. Pp. x + 252. (London: John 

 Murray.) 55. net. 



The Land and the Empire. By 

 144. (London : John Murray.) 3s. 



Comptes Rendus of Observation 

 By J. Y. Buchanan. Pp. xl-l-452. 

 the University Press.) 7s. 6d. net. 



Explosives. By A. Marshall. Second edition. Two 

 vols. Vol. i., pp. XV + 407. (London : J. and A. 

 Churchill.) 3Z. 35. net the two vols. 



Laboratory Manual of General Chemistry, with 

 Exercises in the Preparation of Inorganic Substances. 

 By A. B. Lamb. Pp. vi+i66. (Cambridge, Mass. : 

 Harvard University Press ; London : Oxford Univer- 

 sity Press.) 6s. net. 



German and English Education : a 

 Study. By Dr. Fr. De Hovre. Pp. ic 

 Constable and Co., Ltd.) 2s. 6d. net. 



The Permanent Values in Education. 



C. Turn or. Pp. 

 6d. net. 



and Reasoning. 

 (Cambridge : At 



Comparative 

 8. (London : 



mond. 

 Ltd.) 



Pp. xxiii+ 136. 

 !5. 6d. net. 



By K. Rich- 

 (London : Constable and Co., 



DIARY OF SOCIETIES. 



THURSDAY, March i. 

 RovAL Society, 014.30.— A Graphical Method of Drawing Trajectories for 



High-Ani;le Fire : Prof. W. E. Dalby.— Osmotic Pressures Derived from 



Vapour- Pressure Measurements ; Aqueous Solutions of Cane Sugar and 



Methyl Glucoside : The Earl of Berkeley E. G.^ J. Hartlev, and 



C. v. Burton. — Tiie Complete Photo-Electric Emission from the Alloy of 



.Sodium and Pota.ssium : W. Wilson. 

 RovAL Institution, at 3.— Memorial Art To-day: Prof. E. S. Prior. 

 Mathematical f^ociETV, at 5.30. 

 Chemical Society, at 8.— Notes on the Effect of Heat and Oxidation on 



Linseed Oil : J. A. N. Friend — Acyl Derivatives of Paradiazoimino- 



benzene : G. T. Morgan and A. W. H. Upton. 

 LiNNEAN Society, at 5.— Some Observations on the Feeding Habits of 



Fish and Birds, with Sp-cial Reference to Warnins Coloration : J. C. 



Mottram.— The Heterangiums of the British Coal Measures : Dr. D. H. 



Scott. 



FRIDAY, March 2. 

 Royal Institution, at 5.30.— Cellulose and Chemical Industry (1866- 

 1916): C. F. Cross. ^ 



SATURDAY, March 3. 

 Roval Institution, at 3.— The Pronunciation of English at the Time 

 of Shakespeare. (Lecture II.) : Daniel Jones. 



MONDAY, March 5. 

 Royal Geographical Society, at 5.30.— Indian Frontier Geography: 



Col. Sir Francis Younghusband. 

 Aristotelian Society, at 8.— Fact and Truth : Prof. C. Lloyd Morgan. 

 Royal Society of Arts, at 4.30.— Memorials and Monuments : Lawrence 



Weaver. 

 Society of Enginef.rs, at 5.30.— High Tensile Steel versus Mild Steel for 



Reinforced Concrete : A. W. C. Shelf. 

 Victoria Institute, at 4.30.— The Conscience: Clement C. L. Webb. 



TUESDAY, March 6. 



Royal Institution, at 3.— Internal Combustion Engines: Prof. W. E. 

 Dalby. 



Zoological Society, at 5.30.— Work of the Beavers in the Society's 

 Gardens : R. I. Pocock.— The Scolex in the Cestode Genus Duthiersia, 

 and the Species of that Genus: Dr. F. E. Be^dard.— An Experimental 

 Investigation of the Migration of Woodcock Breeding in the West of 

 Ireland : Capt. S. R. Douglas. 



RoNTGEN Society, at 8.15. 



Faraday Society, at 9,.— General Discussion : The Training and Work of 

 the Chemical Engineer: Opener, Sir George Beilby.— The Training of 

 the Medical Student for Work in the Factory: Prof. F. G. Donnan.— 

 The Training of the Works Chemist in Physics: C. R. Darling.— A 

 Plea for the Forgotten Factor in Chemical Training : W. R. Cooper.— The 

 Work of the Imperial College in the Training of Chemical Engineers : 

 J. W. Hinchley. 



WEDNESDAY, March 7. 

 Royal Society of Arts, at 4.30.— German Business Methods : J. H. 



Vickery. 

 Entomological Societv, at 8. 

 Society of Public Analysts, at 8.— The Quantitative Estimation of 



Mercury in Organic Compounds : J. E. Marsh and O. G. Lye.— The 



NO. 2470, VOL. 99] 



Composition of Milk ; P. S. Arup, H. C. Huish, and H. Droop 

 Richmond.— (i) Studies in Steam Distillation : Part 4, Propionic, Butyric, 

 Valeric, and Caproic Acids. (2) Studies in .Steam Distillation : Part 5, 

 The Analysis of Acetic Anhydride and Alkyl-Malonic Acids: H. Droop 

 Richmond. — Note on Salvarsan and Neo-Salvarsan : J. Webster. 



THURSDAY, March 8. 



Royal Society, at 4.30. — Prvbablc Papers: Some Effects of Growth- 

 promoting Substances (Auximones) on the Growth of I.eniTia minor in 

 Culture Solutions : W. H. Bottomley. — .Some Effects of Growth-promoting 

 Substances (Auximones) on the Soil Organisms concerned in the Nitrogen 

 Cycle : Florence A. Mockeridge. 



Royal Institution, at 3. — Sponges ; a Study in Evolutionary Biology : 

 Prof. A. Dendy. 



Institution of Electrical Engineers, at 8. — Voltage Regulation of 

 Rotary Converters : G. A. Juhlin. 



FRIDAY, March 9. 



Royal Institution, at 5.30.— The Treatment of Wounds in War: Sir 

 Almroth Wright. 



Malacological Society, at 7. — The Genitalia of Neanthinula acuUaia: 

 Dr. A. E. Boycott.— (i) The Radula of the Genus Cominella ; (2) A 

 Colony of Purpura lapillus, with Operculum Malformed or Absent ; 

 (3) Note on the Adventures of the Genus named Lucena ; (4) Note on the 

 Da Costa Plates adapted for Rackett's Edition of Pulteney's Catalogues: 



B. B. Woodw.ird. 



Royal Astronomical Society, at 5. 



SATURDAY, March 10. 



Royal I.nstitution, at 3. — Imperial Eugenics; Saving the Soldier: Dr. 



C. W. Saleeby. 



CONTENTS. PAGE 



Classical Education i 



Scientific Engineering. By Dr. A. Russell 2 



An Agricultural Policy 3 



Our Bookshelf 4 



Letters to the Editor:— 



British Optical Science.— Sir Joseph Larmor, M.P., 



F.R S 5 



The Bursting of Bubbles.— Prof. S. W. J. Smith, 



F.R.S. . . 5 



Thermodynamics and Gravitation : A Suggestion. — 



Dr. George W. Todd 5 



Destructive Wild Birds, By Dr. Walter E. Collinge 6 



New Antiseptics. ByJ. B. C 7 



The School of Oriental Studies 8 



George Massee. By A. D. C 9 



The Promotion of Technical Optics 10 



Notes ... 12 



Our Astronomical Column :— 



Deterojination of Star Colours 16 



Manchester Astronomical Society 16 



Canadian Observer's Handbook 16 



Educational Reform 17 



Production of Iron and Steel in Canada 17 



The "Sei" Whale. By Dr. F. E. Beddard, F.R.S. 17 



Science for the People. By W. P. P 18 



University and Educational Intelligence 18 



Societies and Academies 19 



Books Received 20 



Diary of Societies 20 



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 Number : Gerrard 8830. 



