March 6, 19 13] 



NATURE 



25 



acteristics of partial linear equations of the first order 

 in two variables.— T. de Donder : The theorem of in- 

 dependence of Hilbert.— L. Crussard : The propagation 

 and alteration of waves of shock.— Alexandre See : A 

 new principle of longitudinal stability of aeroplanes.— 

 Albert Turpain : The recording of time signals and 

 Hertzian telegrams with the aid of a Morse apparatus. 

 A detailed description of two types of galvanometer 

 used, in conjunction with a system of relays, in work- 

 ing recording apparatus.— V. Cremieu : The effects of 

 flexion at the points of attachment of the wire of a 

 torsion balance. A continuation of a previous paper 

 on the same subject, with suggested applications to 

 seismographs, dynamometers, and microbalances. — E. 

 Brinei and A. Kuhne : The transformation undergone 

 by heated calcium carbide. When calcium carbide is 

 heated in a closed vessel at 8oo° to iooo°_C. the only 

 transformation it undergoes is a decomposition into_ its 

 elements. There is no evidence in support of the view 

 thai a subcarbide is formed.— E. Fouard : Differential 

 tonometry of solutions and the theory of Arrhenius. 

 The results with sugar are not in accord with the 

 current theories of solution. — H. Colin and A. 

 Senechal : The oxidation of complex cobalto-organic 

 compounds. A study of the velocity of oxidation by 

 air of an alkaline" cobalto-glycerol solution.— Marc 

 Bridel : The presence of gentiopicrin, gentianose, and 

 saccharose in the fresh roots of Gentiana punctata. 



R. Dalimier : The actions of the arseno-aromatic 



compounds (606 and neo-salvarsan) on the haemoglobin 

 of the blood. Dioxydiamido-arseno-benzene (" 606") is 

 without action of the haemoglobin of the blood either 

 in vitro or in vivo. Neo-salvarsan (sodium dioxydiamido- 

 arseno-benzene sulphoxylate), on the contrary, has a 

 marked action of the haemoglobin. In vitro it causes 

 haemolysis and reduces oxyhemoglobin ; in vivo the 

 reduction is not produced, and the haemolysis rapidly 

 vanishes. For these reasons there would appear to 

 be reasons against the use of neo-salvarsan in certain 

 cases.— V. Gregoire : The telophase and the prophase 

 in somatic caryokinesis.— L. Bounoure : Observations 

 on the post-embrvonic evolution of Dytiscus margin- 



„//<;. A. Ch. Hollande : The figured bodies of the 



protoplasm of the cenocytes of insects.— P. Chausse : 

 The suspension in air of the virulent particles obtained 

 by liquid pulverisation. A solution of a dyestuft 

 (methyl violet) was sprayed into a room and experi- 

 ments made on the time" of suspension and transport- 

 ability of the particles. Similar experiments have been 

 made with tuberculous virus.— Albert Berthelot : Pe- 

 searches on Proteus vulgaris considered as a producer 

 of indol.— Em. Bourouelot and J. Coirre : Some new- 

 data on the reversibility of the ferment action of 

 emulsion.— T. Stoklasa. J. Sebor, and V. Zdobnicky : The 

 synthesis of sugars by radio-active emanations. By 

 the interaction of carbon dioxide and nascent hydrogen 

 in the presence of radium emanations and potassium 

 bicarbonate reducing suears were obtained. 



BOOKS RECEIVED. 



Illustrated Catalogue of Physical Apparatus. Pp. 

 1032 + xix. (London: F. E. Becker and Co.) 



Three Years in the Libyan Desert. Travels, Dis- 

 coveries and Excavations" of the Menas Expedition 

 (Kaufmann Expedition). By J. C. E. Falls. Trans- 

 lated bv E. Lee. Pp. xii + 356 + plntes. (London: 

 T. F. Unwin.) 15s. net. 



Die Svnchvtrien : Studien zu einer Monographic der 

 Gattung. By Dr. G. Tobler. Pp. ii + qS + 4 plates. 

 (Jena : G. Fischer.) 5 marks. 



Die Ontogenie der Primatenzahne : Versuch einer 

 Losung der Gebissprobleme. Bv Prof. L. Bolk. Pp. 

 vi + 122 + 2 plates. (Jena: G. Fischer.) 5 marks. 

 no. 2262, VOL. 91] 



University 



W. Sedg- 



Griffiths.) 



Chemistry of the Oil Industries. By J. E. South- 

 combe. Pp. xi + 204. (London : Constable and Co., 

 Ltd.) 7s. 6d. net. 



A Synopsis of the Elementary Theory of Heat and 

 Heat Engines. By J. Case. Pp. iii-rb.5. (Cam- 

 bridge : W. Heffer and Sons, Ltd.) 2s. 6d. net. 



An Introduction to the Physics and Chemistry of 

 Colloids. By E. Hatschek. Pp. ix + 94. (London: 

 J and A. Churchill.) 2S. 6d. net. 



Vicious Circles in Disease. By Dr. J. B. Hurry. 

 Second and enlarged edition. Pp. xiv + 280. (Lon- 

 don : J. and A. Churchill.) 7s. 6d. net. 



On Aristotle as a Biologist, with a Prooemion on 

 Herbert Spencer. By Prof. D'Arcy W. Thompson. 

 Pp. 31. (Oxford : Clarendon Press.) is.net. 



The Physical and Political School Atlas. By J 

 Bartholomew. Pp. xvi + 32. (Oxford 

 Press.) is. net. 



Man and His Future. By Lieut.-Col. 

 wick. Part ii. Pp. 217. (London: F. 



The ' Year-Book of the Scientific and Learned 

 Societies of Great Britain and Ireland. Twenty-ninth 

 Annual Issue. Pp. vii + 373. (London: C. Gntnn 

 and Co., Ltd.) 7«- 6d - ... ^ 



Union of South Africa. Mines Department. 

 Annual Reports for 191 1. Part iii., Geological Sur- 

 vey. Pp. 1 13 + maps + plates. (Pretoria: Government 

 Printing and Stationery Office.) 7s. 6d. 



Life 'in Ancient India in the Age of the Mantras. 

 By P. T. Srinivas Iyengar. Pp. x+140. (Madras: 

 S Varadachari and Co.) . 



Anales del Museo Nacional de Histona Natural de 

 Buenos Aires. Tomo xxiii. Pp. 415 + plates. (Buenos 



* 'Records of the Survey of India. Vol ii., 1910-11. 

 Pp. iii4-i57 + xi maps. (Calcutta: Superintendent 

 Government Printing, India.) 6s. _ 



The Science of Human Behaviour. Biological and 

 Psychological Foundations. By Dr. M. Parmeee 

 Pp. xvii4-443- (London: Macmillan and Co., Ltd.) 



8s. 6d. net. rri*, 



\usfuhrung qualitativer Analysen. by W. blitz 

 Pp. xi 4- 139. (Leipzig: Akademische \ erlagsgesell- 

 schaft m.b.H.) . 



Geological Survey of Alabama. Iron Making in 

 Alabama. By W. B. Phillips. Third edition. Pp. 

 2 =4 4-xxxi plates. (Alabama : University.) 



Pharmakognostischer Atlas. By Dr L. Koch. 

 Zweiter Teil der mikroskopischen Analyse der Drogen- 

 pulver. Zweiter Band. 2 Lief. (Leipzig: Gebruder 

 Borntraeger.) 3.50 marks. 



Taschenbuch fur Mathematiker und Physiker 3 

 lahrgang, 1913- Edited by F. Auerbach and R. 

 Rothe. Ppi X4-463. (Leipzig and Berlin: B. G. 

 Teubner.) 6 marks. 



Exercises in Gas Analysis. By Dr. H. Franzen. 

 Translated bv Dr. T. Callan. Pp. vii+120. (London : 

 Blackie and "Son, Ltd.) 2s. 6d. net. 



Vorlesungen iiber die Theorie der Warmestrahlung. 

 By Dr. M. Planck. Zweite Auflage. Pp. X114-206. 

 (Leipzig : J. A. Barth.) 7 marks. 



Lehrbuch der Thermodynamic By Drs. J. D. v.d. 

 Waals and P. Kohnstamm. Zweiter Tell. Pp. xvi4- 

 646. (Leipzig : J. A. Barth.) 12 marks. 



Year-Book of the Royal Society, 1913- Pp- i» + 2 3«- 

 (London : Harrison and Sons.) gs. _ 



Oualitative Determination of Organic Compounds. 

 By"j. W. Shepherd. Pp. xvi + 348. (London: W. hi. 

 Clive.) 6s. 6<f. , , 



Wild Flowers as They Grow. By H. E. Corke and 

 G C Nuttall. Fifth series Pp. vui 4- 200 + plates. 

 (London : Cassell and Co., Ltd.) &. net 



Trees and How They Grow. Bv G. C. Nuttall and 



