CHEMISTRY. 313 



The sugar content of different food materials is discussed in relation 

 to the diet of patients suffering from diabetes. 



A new method for drying feces, H. Poda (Ztschr. Physiol, ('hem., 

 25 (1898), Xo. 3-1, pp. 354-359). — The author proposes to simplify the 

 drying of feces for analysis by adding absolute alcohol, which assists 

 in driving off the water. The fresh material is dried in a porcelain dish 

 on a water bath for from 4 to hours, at the end of which time it is usually 

 solid when cooled. It is then mixed in the same dish with 50 cc. of 

 absolute alcohol, being broken up into small pieces, and dried on the 

 water bath for about an hour, when the operation is repeated with 25 

 cc. of alcohol. It is then usually dry enough so that it can be ground 

 in the dish to a fine powder, but if not it is treated again with 25 cc. of 

 alcohol and dried. The material, which contains from 2 to 5 per cent 

 of water, is placed in portions of 2 or 3 gm. in beakers and dried in an 

 air bath at 99 to 100°. 



A table is given showing the time required for drying feces with and 

 without treatment with alcohol. The author concludes that the method 

 is a simplification of the ordinarily tedious process, being more rapid 

 and requiring less attention, and giving more accurate results. 



The albuminoids, P. Xolf (Ann. Inst. Pasteur, 12 (1S9S), Xo. 7, pp. 471-4S0; 8, 

 pp. 547-560). — A critical review of the subject. 



Concerning the constitution of the simplest albuminoids, A. Kossel (Ztschr. 

 Physiol. Chem., 25 {1898), No. 3-4, pp. 165-189).— This deals with the '-'protamins" 

 clupein, salrnin, and sturin, their constitution, decomposition products, relation to 

 albuminoid bodies, etc. 



The cleavage of crystalline egg and serum albumin and of serum globulin by 

 pepsin digestion, F. Umber (Ztschr. Physiol. Chem., .25 (lS9S),Xo.3-4, pp. 258-282). — 

 The method id" work and the characteristics of the different factious obtained from 

 each of these albuminoids are described. 



The cleavage products of the proteids prepared from conifer seeds, E. 

 Sciiulze {Ztschr. Physiol. Chem., 25 (189S), Xo. 3-4, pp. 360-362) —A continuation of a 

 former paper. 



Concerning nuclein, P. Nolf (Ann. Inst. Pasteur, 12 (1S9S), Xo.5, pp. 361-368). — 

 Reviews literature and gives present status of the subject. 



The active constituents in castor oil, II. Meyer {Sitzber. Gesell. Befb'rd. 

 Gesam. Naiurwiss. Marburg, 1896, pp. 23, 24). 



Effect of neutral salts upon glucose at high temperatures, H. C. Pkinsen- 

 Geerligs {Ztschr. Spiritusind., 21 (1S9S), Xo.27, p. 243). 



Inversion of sugar by neutral salts in the presence of glucose, II. C. Prinsex- 

 Geerligs (Ztschr. Spiritusind., 21 (1S9S), No. 30, p. 266). 



The chemistry of chlorophyll, L. Marchlewski (Jour. Prakt. Chem., n. ser.,57 

 {1898), p. 330). 



A review of Marchlew ski's contribution on the chemistry of chlorophyll, G. 

 BODE (Jour. Prakt. Chem., n. ser., 37 (1898), pp. 488-493). 



Report of the committee of the agricultural experiment stations and labora- 

 tories on the methods of analysis of fertilizers (Bui. [Min. Ayr. France], 16 (1S97), 

 Xo. 2, pp. 219-251). — This report deals with the following topics: 



Preliminary examination of fertilizers, including qualitative tests for potash, 

 phosphoric arid, ammonia, nitric acid, and organic nitrogen; the sampling oi fer- 

 tilizers, including the taking of samples and their preparation in the laboratory; 

 the determination of potash in muriate, sulphate, and complex forms of potash by 



