86 Scientific Intelligence. 



knowledge of general chemistry. It describes a long series of 

 experiments, the sig^nificance of which is brought out by appro- 

 priate questions. The introductory experiments deal with methods 

 of quantitative analysis and these are followed by definite appli- 

 cations to the analysis of feedstuffs, of soil, of insecticides and 

 fungicides, of milk and of water. In the hands of a capable 

 teacher the book shouhl ^deld excellent service. a. w. e. 



12. Manufing for Higher Crop Production ^ by E. J. Rus- 

 sell. Pp. iv, 69, with 16 text-figures. 1916 (Cambridge Uni- 

 versity Press). — Although written principally for the use of 

 farmers in the British Isles the present work gives information of 

 much value to farmers in general. At the same time emphasis 

 is laid on the impossibility of giving advice which will hold good 

 under all cii'cumstances. After an introductory chapter on the 

 improvement of the soil, natural and artificial manures are de- 

 scribed, and the methods of manuring arable and grass lands are 

 discussed at length. The book is based largely on actual experi- 

 ments carried out at the Rothamsted Experimental Station at 

 Harpenden, of which the author is director. a. w. e. 



13. A Manval of Organic Materia Medica and Fharmacog- 

 nosy ; by Lucius E. Sayke. Fourth edition, revised. Pp. xviii, 

 606; 4 pis., 302 figs. Philadelphia, 1917 (P. Blakiston's 'Son & 

 Co.). — This work deals concisely and thoroughly with the sources, 

 characteristics and constituents of drugs of vegetable and of 

 animal origin. It has been extensively recast. Not only is it 

 brought into conformity with the new U, S. Pharmacopeia IX, 

 but the newer botanical classification (leading from Cryptogams 

 to Composit.'ie) is followed. Besides the elaboration of the mat- 

 ter relating to inorganic drugs, chapters on therapeutic action 

 and serotherapy have been added. These contain valuable matter 

 but a good deal of antique therapeutic superstition is fostered 

 (e. g. the employment of gold salts, sarsaparilla, etc.). 



Plant histology has been largely omitted, the reader being- 

 referred to Stevens' " Plant Anatom3^" Sayre's new edition will 

 attract and be of high service to those who are interested in the 

 study of drugs. h. g. barbour. 



Obituary. 



Professor George Hapgood Stone, formerly a member of 

 the Facult}^ of Colorado College, died on February 20 at the age 

 of sevent3^-five years. He early studied the glacial geology of 

 Maine and in 1881 came to Colorado Springs where he resided for 

 most of the remainder of his life. He was active as a mining 

 geologist and w^as especially interested in the geology of the 

 Pike's Peak region. 



Professor H. F. E, Jungersen, the Danish zoologist who 

 made important contributions to the knowledge of the fauna of 

 Greenland, died recently at the age of sixty-three j^ears. He was 

 particularly interested in the Danish expeditions concerned with 

 the investigation of the North Atlantic and the Polar seas. 



