BOOKS RECEIVED 7 o 9 



is but little reference to Chinese, Japanese, and American early civilisation. 

 Naturally the older d.scoveries receive their closest attention-because it is these 

 discoveries whose magnitude is better seen in the perspective of time The 

 mathematical advances are briefly but excellently recorded ; and we are glad to 

 see that due judgment is exercised in dealing with such a thorny subject as the 

 Newton-Leibrntz controversy (ought not this to be spelt Leibniz?). Surely Sir 

 William Hamilton's work on Imaginary Numbers, which is really the perfection of 

 the theory and the most beautiful form of geometry possible, should have been 

 mentioned, ,f not described. In biology, perhaps too little attention is given to 

 pathology, which is, after all, the most immediately important science of all to 

 humanity, being, in fact, the coping stone of the whole biological arch. But such 

 a book must not be too long, and we do not think that the authors could have 

 done better than they have done within the compass allotted to them We forgot 

 to note that there is an excellent appendix of some inventions of the eighteenth 

 and nineteenth centuries and a number of interesting illustrations. It would 

 have been useful if publishers' names had been inserted in the bibliograph.es and 

 if some indication had been given as to where classical writings on scientific 

 subjects, or translations, can be obtained. 



BOOKS RECEIVED 



{Publishers are requested to notify prices) 



An Introduction to Theoretical and Applied Colloid Chemistry. By Dr. Wolfgang 

 Ostwald, Pr.vatdozent in the University of Leipzig. Authorised Translation 

 from the German by Dr. Martin H. Fischer Eichberg, Professor of Physiology 

 in the University of Cincinnati. New York : John Wiley & Sons ; London ■ 

 Chapman & Hall, 1917. (Pp. X v + 232.) Price us. 6d. net. 



Lecture Notes on Light. By J. R. Eccles, M.A., Assistant Master at Gresham's 

 School, Holt. Cambridge : at the University Press, 1917. (Pp 21c ) Price 

 I2J. 6d. net. 



A Text-book of Physics. For the Use of Students of Science and Engineering. 

 By J. Duncan, Wh. Ex., M.I.MechE., Head of the Department of Civil 

 and Mechanical Eng.neering at the Municipal Technical Institute, West Ham 

 and S. G. Starhng, B.Sc, A.R.C.Sc, Head of the Physical Department at 

 the Municipal Technical Institute, West Ham. London : Macmillan & Co 

 St. Martin's Street, 1918. (Pp. xxiii + 1081.) Price 15s. net. 



Annuaire International de Statistique Agricole, 1915 et 1916. Institut International 

 d Agnculture. Service de la Statistique Generale. Rome : Imprimerie de 

 I Inst.tut International d'Agriculture, 1917. (Pp. xlix + 949.) Price 10 francs. 



Worm Nodules in Cattle. Commonwealth of Australia, Advisory Council of 

 Sc.ence and Industry, Bulletin No. 2. Melbourne, 1917 : Published under 

 the Authority of the Executive Committee of the Advisory Council. By 

 Authority: Albert J. Mullet, Government Printer, Melbourne. C. 10020 

 (Pp. 29.) 



A Year of Costa Rican Natural History. By Amelia Smith Calvert, Sometime 

 Fellow in Biology, Bryn Mawr College, and Philip Powell Calvert, Professor 

 OI Zoology, University of Pennsylvania. New York: The Macmillan 

 company, 191 7. (p p . X1X + 577> with maps and illustrations ) p rjce $J 



