xoo 



NATURn, 



[June 12, 19 19 



the author's "Practical Ethics.") Pp. 77. (London: 

 G. Allen and Unwin, Ltd., 1919.) \s. 6d. net. 



La Sdection Humaine. By Prof. C. Richet. 

 (Biblioth^que Scientifique Internationale.) Pp. iii+ 

 262. (Paris : Librairie F^Hx Alcan, 1919.) 6.60 francs. 



Atlanta di Geografia Fisica, Politica ed Economica. 

 Bv Prof. A. Mori. Fasc. i, maps 18. (Torino, etc. : 

 Ditta G. B. Paravia E.G., n.d.) 



Birdland's Little People: Twelve Nature Studies for 

 Children. By Capt. O. G. Pike. Pp. 123. (London : 

 The Religious Tract Society, 19 19.) 45. 6d. net. 



Barbed-Wire Disease : A Psychological Study of 

 the Prisoner of War. By Dr. A. L. Vischer. Trans- 

 lated from the German. Pp. 84. (London : John 

 Bale, Sons, and Danielsson, Ltd., 1919.) 35. 6d. net. 



Practical Physiological Chemistry. By S. W. Cole. 

 With an introduction by Prof. F. G. Hopkins. Fifth 

 edition. Pp. xvi+401. (Cambridge : W. Heffer and 

 Sons, Ltd.; London -. Simpkin, Marshall, Ltd., 1919.) 

 15s. net. 



Problems of National Education. By Twelve 

 Scottish Educationists. Edited by John Clarke. 

 Pp. xxvi + 368. (London : Macmillan and Co., Ltd., 

 1919.) i2s. net. 



British Ferns and How to Identify Them. By 

 J. H. Crabtree. Pp. 64. (London : The Epworth 

 Press : J. Alfred Sharpe, n.d.) is. 6d. net. 



Commercial Forestry in Britain : Its Decline and 

 Revival. By E. P. Stebbing. Pp. vi+i86. (London: 

 John Murray, 19 19.) 6s. net. 



A Gentle Cynic : Being a Translation of the Book 

 of Koheleth. commonly known as Ecclesiastes, 

 stripped of Later Additions ; also its Origin, Growth, 

 and Interpretation. By Prof. M. J-astrow, jun. 

 Pp. 255. (Philadelphia and London : J. B. Lippincott 

 Co.. IQ19.) 95. net. 



Air Navigation : Notes and Examples. By Instructor- 

 Capt. S. F. Card. Pp. vi+140. (London: Edward 

 Arnold, 1919.) 105. 6d. net. 



The Voyage of a Vice-Chancellor. Pp. ix+139. 

 (Cambridge : At the University Press, 1919.) 6s. net. 



Influenza : A Discussion Opened by Sir Arthur 

 Newsholme. Pp. 102. (London : Longmans, Green, 

 and Co., n.d.) 3s. 6d. net. 



Leeds University. Fourteenth Reoort, IQ17-18. 

 Pp. III. (Leeds: Jowett and Sowry, Ltd., n.d.) 



The Annual of the British School at Athens. 

 No. xxii. Sessions 1016-17, 1917-18. Pp. vii4-272 + 

 plates xi. (London : Macmillan and Co., Ltd., n.d.) 

 25.9. net. 



DIARY OF SOCIETIES. 



THURSDAY, June 12. 



Mathematical Society, at 5.— Prof. G. A. Miller : Groups Involving 

 Three and only Three Operators which are Square. — L. J. Mordell : 

 Some Series whose «th Term Involves the Number of Classes of Binary 

 Quadratics of Determinant -w.— Dr. W. P. Milne and Dr. D.G.Taylor: 

 The Significance of ApoJar Triangles in Elliptic Function Theory.— 

 C. V. H. Rao : The General Theory of Ruled Surfaces. 



Optical Society, at 7.30.— S. D. Chalmers: The Recognition of Detail. 



FRIDAY, June 13. 



Physical Society, at 5.— R. Van der Pol, jun. : A Comparison of the Wave- 

 form of the Telephone Current produced by a Thermal Detector and a 

 Rectifier in the Heterodyne Reception.— E. Wilson and E. F. Herroun : 

 The Magnetic Properties of Varieties of Magnetite. 



Royal Astronomical Society, at 5.— Rev. J. G. Hagen : The Light 

 ; Curves of Long-period Variables. — Miss E. Bellamy : A Curious Instance 

 of Opposite Proper Motions. — H. S. Jones: Results obtained from Seven 

 V'eais' Observations made with the Cookson Floatins: Zenith Telescope at 

 the Royal Observatory, Greenwich.— J. H. Reynolds : The Distribution 

 of Hydrogen and Nebulium in the Orion Nebula.— Rev. A. L. Cortie : 

 The Spectrum of Nova Aquilse, IQ18, August 23 to October i-^.— Probable 

 Paper: W. Moss: The Eruptive Prominence of 1919, May 29 — com- 

 municated by the Director of the Solar Physics Observatory-, Cambridge. 



Mat.aco LOGICAL SOCIETY, at 6.— G. C. Crick : Ammonites navicula 

 (Mantell).— R. Bullen Newton: A Sandstone Cast of AUiria atnri 

 (Basterot) from the Miocene of Western Australia.— A. S. Kennard and 

 B. B. Woodward: The Generic Names for the Two Qr\X\%\i Ellobiidae 

 \o\im Auriculuiae]}>tyosotiSy Draparnaud (=(ie>tticulala, Montagu) and 

 bidentata, Montagu.— G. Despott : The Mollusca of Marsascirocco Har- 

 bour, Malta. — Tom Iredale: Notes on Pol}-placophora. Part II. 



MONDAY, June i6. 

 Victoria Institute, at 4.30.— The Right Hon. the Earl of Halsbury. 



President : Annual Address. 

 Royal Geographical Society, at 8.30. 



TUESDAY, June 17. 



Briti.sh As.sociation Geophy.sicaL Discussions (Royal Astronomical 

 Society), at 5.— Dr. C. T. R. Wilson and J. H. Jeans: Atmosphei^ic 

 Electricity. 



Royal Statistical Society, at 5.15.— Mrs. Walter J. Barton: TJie 

 Course of Women's Wages. 



Zoological Society, at 5.30.— E. Heron-Allen and A. Earlarid : Exhibition 

 of Lantern-slides Illustrating the Cultivation of Vcriteuiiina polystropha, 

 Reuss., in Hypertonic Sea-water and Gem-sand. — C. Morley : Equatorial 

 and other Species and Genera of African Ichneumonids. — Dr. C. W. 

 Andrews : A Description of New Species of Zeuglodons and Leathery 

 Turtle from the Eocene of -Southern Nigeria. — G. A. Boulenger : (i) A List 

 of the Snakes of West Africa from Mauritania to the French Congo. (2) A 

 List of the Snakes of North Africa. 



Minekalogical Socii->ty, at 5.30. — A. Brammall : Andalusite (ChiastoHte): 

 Its Genesis, Morphology, and Inclusions. —R. H. Rastall : The Mineral 

 Composition of Oolitic Ironstones. — L. J. Spencer ; Eighth List of 

 Mineral Names. 



Royal Anthropological Institute, at 8.15. — J. Reid Moir : Flint 

 Implements from the " Middle" Glacial Gravel at Ipswich. 

 WEDNESDAY, June 18. 



Royal Meteorological Society, at 5.— Col. Sir Charles Close: Note 

 on the Rainfall at Southampton and London during a period of 57 

 years (1862-1918), with Special Reference to the Monthly Means. — Lieut. 

 J. Logie : Note on Tornadoes.— Capt. D. Brunt : \ Periodogram 



Analysis of the Greenwich Temperature Records. 

 Propagation of Sound in the Atmosphere. 



-Lieut. G. Green : The 



THURSDAY, Junk 19. 



Institution of Mining IiNc;iNEERs, at n. — Lt.-Col. D. Dale Logan: 

 (a) The Difficulties and Dangers of Mine-rescue Work on the Western 

 Front, and Mining Operations carried out by Men wearing Rescue- 

 apparatus ; (b) Accidents due to Structural Defects of Apparatus or 

 Injury to Apparatus, and the Future of the Proto Apparatus. — M. W. 

 Blyth and L. T. O'Shea : The Examination of Coal in Relation 

 to Coal-washing. — Prof. F. W. Hardwick : Reply to the Discus.sion 

 on his Paper on the Training of Students in Coal-mining, with Special 

 Reference to the Scheme of the Engineering Training Organisation. — W. 

 Maurice: The Education of Colliery Managers for Administrative and 

 Social Responsibilities. 



Royal Society, at 4.30. — Bakerian Lecture. Hon. R. J. Strutt : Phos- 

 phorescence and I' luorescence in Metallic Vapours. 



Institution of Mining and Metallurgy, at 5.30. — W. H. Goodchild : 

 The Genesis of Igneous Ore Deposits. 



Chemical Society, at 8. 



CONTENTS. PAGE 



Catalytic Chemistry. By Dr. S. Rideal .281 



Californian Game Birds . 281 



War Surgery 282 



Our Bookshelf 283 



Letters to the Editor :— 



Wireless Telephony.— A. A. Campbell Swinton, 



F.R.S 284 



The Age of the Stars.— Dr. Harlow Shapley . . 284 

 Globular Lightning.— Prof. J. A. McClelland, 



F.R.S. ; G. Girmore 284 



War and Waste . . 284 



Education : Secondary and University 286 



Sir Boverton Redwood, Bart. By A. C. K 287 



Notes . . 288 



Our Astronomical Column : — 



An Interesting Meteor 291 



The Sun-spot Maximum . 291 



The Mount Wilson Observatory 291 



Sun-spots as Electric Vortices 292 



Science and War . 292 



Indian Survey Report. By T. H. H 293 



Sub-Antarctic Whales and Whaling. By Dr. S. F. 



Harmer, F.R.S .293 



University and Educational Intelligence 295 



Societies and Academies 296 



Books Received 299 



Diary of Societies 300 



ST. 



Editorial and Publishing Offices : 

 MACMILLAN AND CO., Ltd., 

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



Advertisement:, and business letters to be addressed to thm 

 Publishers. 



NO. 2589, VOL. 103] 



Editorial Communications to the Editor. 

 Telegraphic Address: Phosis, London. 

 Telephone Number : Gerhard 8830. 



