402 Scientific Intelligence. 



viii, 223. New York 1904 (John Wiley & Sons).— The first edition 

 of this useful work was issued in 1899 (see this Journal, viii, 399). 

 A second edition, somewhat enlarged, is now given to the public; 

 the most important addition is that of the new statistical methods 

 of Prof. Karl Pearson, his students and associates, with a summary 

 of the results gained by them. 



5. Catalogns Mammalium, tarn, viventium quam fossilium y 

 a Doctore E.-L. Trouessart. Quinquennale Supplementum, anno 

 1904. Berlin (R. Friedlander u. Sohn). — Fasciculus II, pp. 289-546, 

 of the Supplement announced in the July number of this Journal 

 (p. 94), has recently appeared. It is devoted to the Rodentia. 



6. Beitraege zur Chemischen Physiologie und Pathologie ; 

 herausgegeben von Franz Hofmeister. Band V. Braun- 

 schweig, 1904 (Fr. Yieweg und Sohn). — The present volume of 

 fifty pages is, like its predecessors, largely taken up with investi- 

 gations on the proteids and their derivatives. A contribution by 

 Dr. Kammann on the specific pollen toxin which gives rise to 

 hay-fever, indicates that the poison belongs to the group of tox- 

 albumins, is thermostable and not completely destroyed by pro- 

 teolytic enzymes. These facts are of interest in connection with 

 the recent attempts to induce immunity to hay-fever and to 

 obtain a specific antitoxin. Various papers on blood-coagulation 

 serve to render the explanation of this process more complex 

 than ever before. Professor Rohmann has contributed an inter- 

 esting paper on the skin glands (Biirzeldriisen) of birds, throw- 

 ing considerable light on the origin and composition of the secre- 

 tion which they yield. The volume also contains several papers 

 of physico-chemical interest, and a number of communications 

 on enzymes, including important observations on amide-splitting 

 ferments. l. b. m. 



7. Osticalcfs Klassiker der exakten Wissenschaften. Leipzig, 

 1904 (Wilhelm Engelmann). — The following parts of this series 

 of scientific classics have recently appeared. 



No, 143. Abhandlung uber die Auflosung der numerischen 

 Gleichungen (1835) von C. Sturm. Aus dem Franzosischen 

 iibersetzt und herausgegeben von Alfred Loewy. Pp. 66. 



No. 144. Johannes Keplers Dioptrik, oder Schilderung der 

 Folgen, die sich aus der unlaugst gemachten Erfindung der Fern- 

 rohre fur das Sehen und die sichtbaren Gegenstande ergeben 

 (1611). Ubersetzt und herausgegeben von Ferdinand Plehn. 

 Pp. 114. 



No. 145. Tiber die Konstitution und die Metamorphosen der 

 chemischen Verbindungen und liber die chemische Natur des 

 Kohlenstoffs : untersuchungen liber aromatische Verbindungen 

 von August Kekule. Herausgegeben von A. Ladenburg. Pp. 89 

 with a plate. 



