176 



NATURE 



[April 20, 1916 



largest representatives of this genus are of greater 

 dimensions than the Mammoth. — E. Bataillon : Fecun- 

 dation membrane and polyspermia in the Batrachians. 

 — Charles NicoUe and Ludovic Blaizot : The prepara- 

 tion of an experimental antiexanthematic serum and 

 its first applications to the treatrnent of typhus in 

 man. It has been found that emulsions of the spleen 

 or suprarenal capsules of the guinea-pig can be safely 

 inoculated into horses, and repeated inoculations are 

 possible. In this way the horse and ass have been 

 rendered immune to typhus, and a serum has been 

 prepared applicable to the treatment of the disease in 

 man. Nineteen cases in men were treated and cured. 



BOOKS RECEIVED. 



Department of Marine and Fisheries. Meteorologi- 

 cal Service of Canada. M.S. 51 : Upper Air Investi- 

 gation in Canada. Part i., Observations by Register- 

 ing Balloons. Pp. 127. (Ottawa : Government Print- 

 ing Bureau.) 



Department of the Interior, Canada. Publications 

 of the Dominion Observatory, Ottawa. Vol. iii., 

 No. 2: Seismological Tables. By Dr. O. Klotz. 

 (Ottawa : Government Printing Bureau.) 



Exposition Internationale de Lyon, 1914. La Science 

 k I'Exposition. By Prof. J. Mascart. Pp. 81. (Lyon : 

 P. Legendre et Cie.) 



University of California. Publications in American 

 Archaeology and Ethnology. Vol. ii.. No. 6. Pp. 

 297-398 : The Delineation of the Day-Signs in the 

 Aztec Manuscripts. By T. T. Waterman. (Berkeley, 

 Cal. : University of California Press.) 



Journal of the College of Science, Imperial Uni- 

 versity of Tokyo. Vol. xxxv.. Art. 7 : Revision of 

 the Japanese Termites. By S. Hozawa. Pp. 161 + 

 plates iv. Vol. xxxvi., Art. 7 : Contributiones novae 

 ad Floram Bryophyton Japonicam. By S. Okamura. 

 Pp. 51 + tabula xxiv. Vol. xxxvii., Art. 2 : Recherches 

 sur les Spectres d'Absorption des ammine-complexes 

 m6talliques. I. By Y. Shibata. Pp. 28. (Tokyo : 

 The University.) 



Lezioni di Cosmografia : con 20 incisioni nel testo 

 e due tavoli. By Prof. G. Boccardi. Pp. ix + 233. 

 (Milano : U. Hoepli.) Lire 3. 



Gnomica : L'Orologia Solare a tempo vero nella sua 

 moderna applicazione con 33 incisioni. By G. B. 

 Barzizza. Pp. viii+199. (Milano: U. Hoepli.) Lire 

 2,50. 



Manuring for Higher Crop Production. By Dr. 

 E. J. Russell. Pp. 69. (Cambridge : At the Univer- 

 sity Press.) 3s. net. 



The New Public Health. By Prof. H. W. Hill. 

 Pp. x + 206. (London: Macmillan and Co., Ltd.) 

 55. 6d. net. 



Cerebro-spinal Fever. By Dr. M. Foster and Dr. 

 J. F. Gaskell. Pp. x + 222. (Cambridge: At the Uni- 

 versity Press.) I2S. 6d. net. 



Memoirs of the Geological Survey. Special Re- 

 ports on the Mineral Resources of Great Britain. Vol. 

 iv. : Fluorspar. Bv R. G. Carruthers, and others. 

 Pp. iv + 38. (London: H.M.S.O. ; E. Stanford, 

 Ltd.) gd. 



Quarantining Germany. By P. J. Ford. Pp. 16. 

 (Glasgow: J. Maclehose and Sons.) id. 



University of California. Publications in Ameri- 

 can Archaeology and Ethnology. Vol. ii.. No. 7. 

 Pp. 399-472. The Mutsun Dialect of Costanoan 

 based on the Vocabulary of de la Cuesta.' By J. A. 

 Mason. (Berkeley, Cal. : University of California 

 Press.) 



Institut de Pal^ontolo£«ie Humaine. Peintures et 

 Gravures Murales des Cavernes Pal^oHthiques : La 

 Pileta a Benaojan (Malaga) (Espagne). By I'Abb^ H. 



NO. 2425, VOL. 97] 



Breuil, Dr. H. Obermaier, and Col. Willoughby 

 Verner. Pp. 65 + plates i-xxii. (Monaco: A. Chene.) 



A Manual on Explosives. By A. R. J. Ramsey and 

 H. C. Weston. Pp. xi+ii6. (London: G. Routledge 

 and Sons, Ltd.) is. net. 



The Sense of Community. Bv Sir F. Younghus- 

 band. Pp. 25. (London : Williams and Norgate.) 

 IS. net. 



A Veteran Naturalist : being the Life and Work of 

 W. B. Tegetmeier. By E. W. Richardson. Pp. 

 xxiv + 232. (London : Witherby and Co.) los. net. 



The South African Institute' for Medical Research. 

 No. 6 : The Trypanosomes of Sleeping Sickness. By 

 G. D. Maynard. Pp. 39 + xxvi charts. (Johanne^- 

 burg : W. E. Hortqn and Co., Ltd.) 5s. 



Elementary Strength of Materials. By E. S. An- 

 drews. Pp. viii + 216. (London: Chapman and Hall, 

 Ltd.) 4s. 6d. net. 



Spiritualism : a Historical and Critical Sketch. 1 

 the Rev. Canon E. McClure. Pp. viii + 56. (London^ 

 S.P.C.K.) 6d. net. 





DIARY OF SOCIETIES. 



THURSDAY, April 27. 

 RoTAi, Society of Arts, at 4.30.— Scientific Agriculture in India: J. 

 MacKenna. 



FRIDAY, April 28. 

 Geological Physics Society, at 5. — Presidential Address : Growths in 

 Silica Gel : Prof. Benjamin Moore. 



CONTENTS. PAGH 



Gems and Superstition 157 



A Biography of Edison. By S. G. Brown, F.R.S. 158 

 The Design of Diesel Engines for Marine Purposes. 



Hy A. J. M 158 



Our Bookshelf 159 



Letters to the Editor: — 



The Primary Sugar of Photosynthesis.— Prof. Henry 



H. Dixon, F.R.S.; Thomas G. Mason ... 160 

 Isle of Wight Disease in Bees.— Dr. James Ritchie ; 



F. . ." .... 160 



Preventive Eugenics. — Dr. C. W. Saleeby . 161 



Atmospheric Electricily.— R. A. Watson Watt . l6l 

 'I he Influence of Tides on Wells.— Cecil Carus- 



Wilson .... 162 



Physiology in the Woikshop. By E. H. S 162 



The Shortage cf Dyestuffs. By Prof. W. J. Pope, 



F.R.S. 163 



The Proposed Board of Aeronautics 164 



Notes. [Illustrated.) . 165 



Our Astronomical Column :— 



Comet 1916^ (Neujmin) • 169 



Solar Radiation '^9 



Proper Motion of the Orion Nebula 169 



The System of \ Tauri 169 



The Institution of Naval Architects 17° 



Danish Labour on British Farms 17° 



The Cultivation of Sponges I7' 



National Aspects of Chemistry. By Dr. Alexander 



Scott, F.R.S 171 



University and Educational Intelligence i73 



Societies and Academies '74 



Books R-reived '70 



Diary of Socie'ies '7o 



Editorial and Publishing Offices : 

 MACMILLAN & CO., Ltd., 

 MARTIN'S STREET, LONDON, W.C. 



ST. 



Advertisements and business letters to be addressed to tht 

 Publishers. 



Editorial Communications to the Editor. 

 Telegraphic Address : Phusis, London. 

 Telephone Number : Gerrard 8830. 



