;6o 



NATURI-: 



[January 2, 19 19 



itei F01 1 eproduction. M. Caullery ani I 

 Mesnll : The initial parasitii phasi - 



pti. ( Ibsei vations on this parasite in 

 3 of development confirm the in 

 irently paradoxical, deduced from the stud oi 

 the adult. E. Roubaud : Physiological rhythm 

 spontaneous flighl in Inopheles macitlipenni F. 

 d'Hcrelle: The rdle of the filtering bacillus in dysen- 



This bacillus exists normall) in the inti 

 [Tie presence of the Shiga dysenterj bacillus in the 

 intestine determines at first a considerable increase in 

 the activity of the filtering bacillus against />'. colt, 

 and then it becomes capable <il causing the gradual 

 01 rapid disappearance of the Shiga bacillus. Ii has 

 been further proved in the case of the rabbit that cul- 

 tures of the filtering bacillus have preventive and cura- 

 tive action in the disease introduced experimentally. — 

 A. Vernes and R. Douris : The action of ferric thio- 

 cyanate on normal human serum. 



December [6, [918. — M. P. Painleve" in the chair. 

 \1. flamy : The diffraction of solar images. — Ch. 

 Deperet : An attempt at the general chronological co- 

 ordination of the Quaternary period. — M. A. Rateau 

 was elected a member of the division of the applica- 

 tion of science to industry, M. VVaddell a corrcspondant 

 for the section of mechanics in succession to the late 

 M. Zaboudski, and Sir David Bruce a correspondant 

 for the section of medicine and surgery in succession 

 to the late M. Czerny. — M. Valiron : The general pro- 

 perties of entire functions and the theorem of M. 

 Picard.— M. Mesnager : Curves defined by series. Ad- 

 vantages of a change of definition.— M. Swyngedauw ; 

 The effective resistance and reactance of an armoured 

 triphase cable for the three harmonics of the current. — 

 G. A. Le Roy : A mode of mercurial embalming in 

 medieval times. The examination of a material used 

 in embalming John of Lancaster, Duke of Bedford, in 

 1 435 proved it to consist of balsams triturated with 

 metallic mercury. — J. de Lapparent : The elaboration of 

 silica and siliceous limestones by algae of the Gir- 

 vanella group. — Mme. Valentine Charles Gatin : The 

 structure of the peduncle in the flowers of Liliaceae. 

 The anatomical structure of the floral peduncle in the 

 Liliaceae forms an anatomical distinction between the 

 different genera of this order, as well as the species 

 of the same genus. — G. Andr£ : Distribution of the 

 mineral elements and the ' nitrogen in etiolated 

 plants. About three-fourths of the nitrogen and 

 phosphoric acid present in the seed (haricot) 

 are transferred from the cotyledons to the young 

 plant during twenty-five days' growth in the 

 dark. The redistribution of the sulphur is similar. — 

 J. Chaine : Considerations on the general muscular 

 svstem of the vertebrates. — Ch. J. Gravier : The adapta- 

 tion of the foot to the surrounding medium in the 

 a anemone at great submarine depths. — MM. Alezais 

 and Peyron : The characters and origin of a group of 

 tumours wrongly classified with the cocevgian class of 

 Luschka. The authors give reasons for regarding 

 tli.s,. so-called peritheliomas as neoplasts of neuro- 

 epithelial origin arising from vestiges of the caudal 

 segment of the spinal column. M. Heitz-Boyer : The 

 osteogen! tic ai ii i of di ad bone tissue. 



BOOKS RECEIVED. 



Electro-analysis. By Prof. E. F. Smith. Sixth 

 ■ dition. Pp. xiii 1-344. (Philadelphia : P. Bl 

 Son and Co.) 2.50 dollar, net. 



In- Botanj oi Crop Plants B3 Prof. VV. W. 

 Robbins. Pp. xix + (.Si. (Philadelphia: P. Blakis- 

 ton's Son and < !o.) 2 dollai s net. 



The Natural Organic Colouring Matters. Bv Prof. 

 \. G. Perkin and Dr. A. E. Everest, t Mqno 1 iph 

 NO. 2566, VOL. IO2] 



on Industrial Chemistry Series. 1 p,,. xxii+655. 

 ( London : Longman . | '..s.. net. 



Evolution and the Doctrine of the Trinity. By 

 s. \. McDowall. Pp. xxvi + 258. (Cambridge: Ai 

 the Universiti Press.) 9s. net. 



Technical Handbook of oils, Fats, and Waxes. 

 Vol. it. : Practical and \nalvtical. By Percival J. 

 Fryet and Frank E. Weston. (Thi Cambridge 

 I • 1 in tii al Sei ii s.) Pp. xvi 314. (Cambridg 

 the t fnivei sitj Press. 1 15-.. net. 



The Physiology of Industrial Organisation and the 

 Re-employment of the Disabled. By Prof. Jules Vmar. 

 Translated by Bernard Miall. Edited, with notes and 

 an introduction, by Prof. A. F. Stanley Kent. Pp. 

 xxv+371. (London: The Librarj Pies,, Ltd.) 30s. 

 net. 



A Text-book of Biology for Students in General, 

 Medical, and Technical Courses. By Prof. W. M. 

 Smallwood. Third edition, enlarged and thoroughly 

 revised. Pp. xiv + 306+8 plates. (Philadelphia and 

 New Vorlc : Lea and Febiger.) los. 6rf. net. 



DIARY OF SOCIETIES. 



MONDAY, January 6. 

 Aristotki.ian Society, at 8.— C. D. Broad : Mechanical Kxpla 

 and ils Alternatives. 



TUESDAV, January 7 . 

 Rontgen Society, at 8.15.— Dr. H. S. Allen : Electrical Changes Produced 

 by Light. 



WEDNESDAY, January 8. 

 Geological Society, at 5.30, 



THURSDAY, January o. 

 Institution of Electrical Engineers, at 6.— M. E. Field The 

 Navigational (Magnetic) Compass as an Instrument of Precision 

 FRIDAY, January 10. 

 Royal Astronomical Society, at 5. 



THURSDAY, January 16. 

 Chemical Society, at 8. 



CONTENTS. page 



International Organisation of Science 341 



High Explosives . . 343 



Is Psychology One of the Natural Sciences? By 



Prof. H. Wildon Carr 344 



Organic and Applied Chemistry 345 



Our Bookshelf 346 



Letters to the Editor: — 



Fuel Econornisers. — Dr. John Aitken, F.R.S. . 346 

 University Poverty or Parsimony ? — Prof. Henry E. 



Armstrong, F.R.S 347 



Inter- A Hied Conference on International Organisa- 

 tions in Science. — Prof. Arthur Schuster, F.R.S. 347 

 Scientific Research and Preventive Medicine . . . 347 



Wind Circulation of ihe Globe. By J. S. D 348 



The Visit of President Wilson 349 



Notes 350 



Our Astronomical Column :— 



Schorr's Comet 354 



Borrelly's Comet 354 



" The Companion to the Observatory, 1919 " . . . 354 



Redetermination of the Orbit of 5SS Achilles .... 354 

 The Manchester Exhibition of British Science 



Products 354 



The Conception of the Chemical Element as 

 Enlarged by the Study of Radio-active Change. 



( With Diagram.) By Prof. Frederick Soddy, F.R.S. 356 



University and Educational Intelligence 358 



Societies and Academies 359 



Books Received 360 



Diary of Societies 360 



Editorial and Publishing Offices : 



MACMILLAN AND CO., Ltd., 



ST. MARTIN'S STREET, LONDON, W.C.2. 



Advertisements and business letters to be addressed to the 



Publishers. 



Editorial Communications to the Editor. 

 Telegraphic Address: Pnusis, London. 

 Telephone Number Gerhard 8830. 



