256 



n:ature 



[May 18, 1916 



xii + 318. (London : Methuen and Co., Ltd.) js. (yd. 

 net. 



The Athenaeum Subject Index to Periodicals, 1915. 

 Anthropology and Folk-Lore. Pp. 32. (London : 

 Athenaeum Office.) is. bd. net. 



Rapport Annuel sur I'Etat de I'Observatoire de 

 Paris, 1914. By P. Baillaud. Pp. 38. 1915. By P. 

 Baillaud. Pp. 28. (Paris : Imprnnerie Nationale.) 

 . Les Racines des Plantes Herbacees. By A. P. 

 Modestov. Livr. i (Publications 1-4). Pp. 138. 

 (Moscow.) 



The Bacterial Infection of Fresh Eggs. Bulletin 164. 

 Agricultural Experiment Station of the Rhode Island 

 State College, Kingston, R.I., U.S.A. Pp. 70 (King- 

 ston, R.I.) 



British Sea. Fish. By H. Swithinbank and G. E. 

 Bullen. ' Pp. xi + 35. (London: Simpkin, Marshall 

 and Co., Ltd.) 2s. net. 



U.S. Department of Agriculture. Bureau of Bio- 

 Logical Survey. North American Fauna. No. 37 : 

 Revision of the American Marmots. By A. H. Howell. 

 Pp. 80 + plates XV. No. 38: A Review of the Amer- 

 ican Moles. By H. H. T. Jackson. Pp. loo + plates 

 vi. (Washington : Government Printing Office.) 



Smithsonian Miscellaneous Collections. Vol. Ixii., 

 No. 4 : Hodgkins Fund. Reports on Wind Tunnel 

 Experiments in Aerodynamics. By J. C. Hunsaker, 

 E. Buckingham, and others. With five plates, (Wa^^h- 

 ington : Smithsonian Institution^) 



, Smithsonian Miscellaneous Collections. Vol.' Ixiv., 

 No. 3 : Cambrian Geology and Paleontology, III. 

 No. 3, Cambrian Trilobites. .By C. D. Walcott. Pp. 

 157 to 258 + plates 24 to 38. Vol. Ixv., No. 14: The 

 Sense Organs on the Mouth-parts of the Honey Bee. 

 By N. E. McIndoOi 1 Pp^ 55. (Washington : Smith- 

 sonian Institution.) 



United States Department of Agriculture. Report 

 No. 108 : The Acarina, or Mites. By N. Banks. Pp. 

 153. (Washington : Government Printing Office.) 



Annals of the Missouri Botanical Garden. Vol.' ii., 

 No. 4. Pp. 659-841. (St. Louis, Mo.: Board of 

 Trustees.) 



University of Nevada Agricultural Experiment Sta- 

 tion, Reno, Nevada. Bulletin No. 83, Technic-al : The 

 Value of High-Level Meteorological Data in Fore- 

 casting Changes of Temperature. By Prof. S. P. 

 Ferguson. Pp. 30.' (Reno, Nevada : The Univer- 

 sity.-) ... 



The Daubeny Laboratory Register, 1904-1915, with 

 Notes on the Teaching of Natural Philosophy, and 

 witli Lists of Scientific Researches carried out by 

 Memb.ers.of Magdalen College, Oxford. By R. T. 

 Giinther. Pp. x+139 to 292. (Oxford: Printed for 

 the Subscribers at the Universitv Press.) 7s. 6d. net.. 



Department of Commerce. Technologic Papers of 

 the Bure.au of Standards. No. 53 : An Investigation 

 of Fusible Tin Boiler Plugs. Bv G. K. Burgess and 

 P. D. Merica. Pp. 37. (Washington : Government 

 Printing Office.) 



DIARY OF SOCIETIES. 



THURSDAY, May i8. 



RoVAL Socif.tV, at 4.30. — An Active Modifi. ation ofNitrogen : Hon. R. J.' 

 -Strutt. — A Theory of Colour Vision: Dr. R. A. Housfoun. — Linkages. 



\ Illustrating the. Cubic Transformation of Elliptic Functions: Col. R L. 

 Hippisley. 



Royal Institution, at 3.— Flints and Flint Implements: Sir Ray 

 Lankester. . 



Royal Geocraphical Society, at 5. — Notes on the Possibility of Ascend- 

 ing the Loftier Himalaya : Dr. A. M. Keltas. 



Chemical Socikty, -at 8. — New Standpoints in the CHemical Study- of 

 Nutrition : Prof. F. Gowhnd Hopkins. 



FRIDAY, May 19. . 

 Royai. Institution, at S-Sp. — The Mpvements of the Earth's Pole: Col. 



E. H. Hills. 

 iNST^TUTibN OF' RfEcHANiCAL Ekginfbrs, ' Jit 6. — ^pur^Gcaring : • D. 



Adamson. 



NO. 2429, VOL. 97] 



SATURDAY, May 20. 

 Royal Institution, at 3.— The Finance of the Great War— New Problems 

 and New Solutions : Prof. H. S. Fox well. 



MONDAY, May jz. 

 Royal Geographical Society, at 3. — Anniversary General Meeting. 

 Royal Society of Arts, at 4.30. — Vibrations, Waves, and Resonance : 

 Dr. J. Erskine-Murray. 



TUESDAY, Mav 23. 



RovAL Institution, at 3. — Unconscious Nerves — their Functions in 

 External Life: Prof. C. S. Sherrington. 



Royal Anthrppoix)gical Institute, at 5. — The Canoes, of British New 

 Guinea : Dr. A. C. Haddon. 



Zoological Society, at 5.30. — The Structure of the Skull in Chrj'sochloris : 

 LieuL R. Broom. — Note on the Sternum of a Bird from the Eocene of 

 Nigeria: Dr. C. W. Andrews. — A Mammalian Mandible from the 

 Cretaceous of Alberta. Canada : Dr. A. Smith Woodward. — (i) List of 

 Carabidee(Coleoptera) from Chopersk District, South Russia ; (2) A New 

 Species of the Genus Platysma (Coleoptera) from China ; (3) Notes on 

 Species of the Genus Platysma from Australia : V. Lutshnik. 



WEDNESDAY, May 24. 

 Geological Society, at 5.50. 

 I.innean Society, at 3. — Anniversary Meeting. 



RovAL Society of Arts, at 4.30. — Zinc: Its Production and Industrial 

 Applications : J. C. Moulden. 



THURSDA Y, May 25. 



Royal Society, at 4.30. — Hakerian Lecture: X-Rays and the Theory of 

 Radiation : Prof. C G. Harkla. 



Royal I n.stitution, at 3. — The Beginnings of the Orchestra and its Instru- 

 mental Combinations : Sir Alexander Mackenzie. 



FRIDAY, May 26. 

 Royal Institution, at 5.30.— X-Rays : Prof. C. G. Barkla. 



SATURDAY, May 27. 

 kovAL Institution, at 3. — The Finance of the Great War : Prof. H. S. 

 Foxwell. 



CONTENTS. PAGE 



Mimics Ready-made. By E. B. P 237 



The Growth of the Mind. By A. E. Crawley ... 238 



An Indian Bird Calendar. By F. F 239 



Our Bookshelf 239 



Letters to the Editor: — 



A Suggestion with regard to Genera Splitting. — Dr. 



J. Burton Cleland 240 



The Place of Science in Education. — D. Balsillie . 240 

 A Mysterious Meteorite. {Illustrated.) — Dr. G. T. 



Prior, F.R.S 241 



The Relief of the Shackleton Antarctic Expedition. 



{With Map.) 241 



The Application of Mathematics to Epidemiology. 



By M. Greenwood, Jr 243 



Prof. Emile Jungfleisch. By J. B. C 244 



Notes 245 



Our Astronomical Column :— 



■ Stereoscopic Spectroheliograms 249 



A Variation in the Solar Rotation 249 



The Great Meridian Circle of the Paris Observatory 249 



The "Summer Time " Bill 250 



Purification of Coal-gas 250 



Prehistoric Art 250 



Science and Classics in Modern Education. By 



Sir Edward SchSfer, F.R.S 251 



University and Educational Intelligence ..... 252. 



Societies and Academies . 253- 



Books Received 255. 



Diary of Societies . 256. 



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. 



