440 



NATURE 



[August i, 191 8 



injections. The percentage of . red corpuscles is 

 lowered, but the rnass of the blood is increased. — 

 G. A. Boulenger : The relations of ontogeny to taxi- 

 nomy in Batrachians.— MM. Dimier and J. Bergonie : i 

 The search for the guinea-worm by radicgraphy. This 

 parosite can be detected by the X-rays. — R. Jonckheere : 

 Observations and identification of the new star in 

 Aquila. Observations of magnitude were made on 

 June 8, 9, 10, II, and 12. 1 he new star has been identified 

 with one recorded on photographs taken at Johannes- 

 burg (August, 19 10) and at Algiers (August, 1909, and 

 June, 1895). — A. Veronnet : The maximum temperature 

 of a star undergoing condensation. — A. Leduc : The 

 density, compressibility, and atomic mass of argon. 

 The numbers for density and atomic mass do not.diff^er 

 appreciably from those given by Ramsay and Travers. 

 — Q. Majorana : Experimental demonstration of the 

 constancy of the velocity of light emitted by a moving 

 source. The source of light was a rotating, mercury 

 arc, with a peripheral velocity of 90 metres per second, 

 and the light was examined by a Michelson, interfero- 

 meter. — P. Weiss : A property of ferro-magnetism.— 

 P. Boucherot : Calculation of the propagation of alter- 

 nating currents on long lines by the separation of the 

 real and reactive powers. — E. Belot : The experi- 

 mental reproduction of mountain folds on the hypo- 

 thesis of a horizontal displacement of the internal 

 layers. — L. Gentil : The extension into Andalusia of 

 strata in the province of Cadiz.— P. Wintrebert : The 

 disjunction of the nervous and muscular functions at 

 the period of latent automatism in the embryos of 

 ScyUium canicula.—H. Marichelle : The theory of 

 vowels and its applications to auditive re-education. — 

 E. Maignon : The influence of the species of animal on 

 the toxic power and mode of utilisation of the food 

 proteins. The foods employed were white of egg, 

 casein, and meat-powder; the effects on the dog and 

 white rat are compared. — P. Portier and H. Bierry : 

 The importance of the ketonic function in metabolism. 

 Ketone formation by symbiotes. The pentoses (ara- 

 binose and xvlose), the hexoses (glucose, levulose, galac- 

 tose, sorbose), the bioses (saccharose, etc.). and certain 

 polvalcohols (glycerol, mannite) are, in suitable media, 

 attacked bv svmbiotes. giving, besides other products, 

 acetvl - methyl - carbinol, CH,.CO.CH.(OH).CH,.— M. 

 Heitz-Boyer : The mechanical reduction of fractures. — 

 M. Quenu : Remarks on the preceding comnmnication. 



Pr.TROGRAD. 



Academy of Sciences, November, 1917. — V. L. 

 Bianchi : Fundamental conceptions of zoogeographical 

 divisions. — M. N. Rimskij-Korsakov : Note on the 

 aquatic Hymenoptera in the collections of the zoological 

 museum of the Russian Academy of Sciences.- — A. A. 

 Markov : Generalisation of the problem of the suc- 

 cessive exchange of balls. — O. Kuzeneva : Lis.t of the 

 plants collected by the expeditions for exploring the 

 basin of the Zeja, in the Amur province. — V. I. 

 Palladin and V, P. lUiiuviev : The formation of zymase 

 in plants. — K. M. Deriugin : Obituary notice of the 

 zoologists V, Ja. Lazdin and N. V. Prosvirov, killed 

 in the Pamirs in 1916. — E. H. Rosenthal : Magnetic 

 observations made in the Baltic governments in the 

 summer of 19 14. — N. M. Krylov : Various generalisa- 

 tions of the method of W. Ritz, and certain ques- 

 tions connected therewith. — V. A. Steklov : Remarks 

 on quadratures. — N. I. Andrusov : The geological struc- 

 ture of the bed of the Straits of Kertch. — L. Ja. 

 Sternberg : The Chinese heavenly tvvins from the point 

 of view of comparative ethnography. (A reply to the 

 article by V. M. ^leksejev : The immortal doubles of 

 China and the daos with the golden toad.) — P. B. 

 Struve : Preparatory studies on the history of political 

 economy in Russia. I. To what school of economics 



NO. 2544, VOL. lOl] 



did Henri Storch belong? II. History of political 

 economy published in 1836 by Helmuth Winter, pro- 

 fessor at Kazan University. The conception and the 

 problem of commercial politics. — ^A. F. Zaicev : M. N. 

 Katkov's views on Russia's commercial policy during 

 the period 1860-80. 



BOOKS RECEIVED. 



The Main Currents of Zoology. By Prof. W. A. 

 Locv. Pp. vii + 216. (New York: H. Holt and Co.) 



The Theory of the Relativity of Motion. By R. C. 

 Tolman. Pp. ix+225. (Berkeley : University of Cali- 

 fornia Press.) 



Electrical Experiments. With 52 Diagrams and Full 

 Details of Apparatus and Method of Procedure in about 

 80 Exercises. By A. Risdon Palmer. Pp. xii+115. 

 (London : T. Murby and Co.) is. 6d. net. 



Magnetic Measurements and Experiments. With 

 .:^2 Diagrams and Numerous Fully-worked Examples. 

 By A. Risdon Palmer. Pp. 124. '(London : T. Murby 

 and Co.) is. 6d. net 



The Statics of the Female Pelvic Viscera. Vol. i. 

 In which the Evidence of Pathology, Phylogeny, and 

 Ontogeny, and Clinical Investigation, etc., is Sur- 

 veyed. Bv Dr. R. H. Paramore. Pp. xviii + 383. 

 (London : H. K. Lewis and Co., Ltd.) 18s. net. 



The Strategic Geography of the Great Powers. Based 

 on a Lecture Delivered during 1917 to Officers of the 

 Grand Fleet and to the British Armies in France. By 

 Dr. V. Cornish. Pp. viii+114. (London: G. Philip 

 and Son, Ltd.) 2s. net. 



The Life of Sophia Jex-Blake. By Dr. Margaret 

 Todd. Pp. xviii + 574. (London: Macmilian and Co., 

 Ltd.) i8s. net. 



CONTENTS. PAGE 



Artificial Limbs and War Injuries 421 



The Parasitic Hypothesis of Tumours. By Dr. 



J. A. Murray . . 422 



The War and the Bagdad Railway. By Lt.-Col. 



L. A. Waddell 422 



Our Bookshelf : ■ 423 



Letters to the Editor:— 



The Problem of Man's Ancestry. — Prof. V. 



Giuffrida-Ruggeri ; Prof. F. Wood-Jones . . 424 



Lice and Disease 424 



Agricultural Reconstruction after the War. By 



Dr. E.J. Russell, O.B.E., F.R.S .426 



Platinum 428 



The British Scientific Products Exhibition .... 428 



Notes 429 



Our Astronomical Column : — 



The New Star in Aquila 433 



The General Magnetic Field of the Sun ...... 433 



The Spectroscopic Binary Boss 1082 ... ... 434 



Marine Biology in the United States. By E. J. A. . 434 



Gypsum in South Australia 435 



The Claims of German Ironmasters. By H. L. . . 435 



Vibrations of Tall Chimneys . 43^ 



Vibrations: Mechanical, Musical, and Electrical. 



(Illustrated.) By Prof. Edwin » Barton, F.R.S. . 436 



University and Educational InteUigence 439 



Societies and Academies 439 



Books Received 44° 



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