1050 EXPERIMENT STATION RECORD. 



gators, the authors report starch grain very similar in form and size to those of wheat 

 starch. 



A note on urea, R. Gaze (Arch. Pharm., 243 (1905), No. 1, pp. 78, 79).— The 

 author reviews previous work on the occurrence of urea in vegetable products, and 

 reports data on the isolation of this body from both ripe and unripe Lycoperdon 

 bovista. He also examined L. cervinum and found that it contained much mannit 

 but no urea. 



A method for the rapid estimation of chlorin in urine, W. M. Dehx (Ztschr. 

 Physiol. Chem., 44 (1905), No. 1-2, pp. 11-16). — The author describes a modification 

 of Volhard's method for which he claims accuracy, rapidity, and ease of execution. 



The rapid estimation of potassium and sodium in urine and the calculation 

 of results, L. Garxier (Compt. Rend. Soc. Biol. [Paris], 58 (1905), No. 12, pp. 549- 

 552). — The method described is a modification of Autenrieth's method for estimating 

 potassium as perchlorate and Garratt's method for estimating potassium and sodium 

 as sulphates. 



The examination of meat, yeasts, and other extracts for xanthin bodies, 

 K. Micro (Ztschr. Uniersuch. Nahr. u. Genussmtl., 8 (1904), No. 4, pp. 225-237). — 

 A report and discussion of analytical data (see E. S. R., 15, p. 954). 



The hydrolysis of casein, Z. H. Skraup (Ber. Beat. Chem. Gesell., 37 (1904), 

 No. 7, pp. 1596, 1597 ). — A number of bodies not previously noted were identified by 

 the author in his studies of the hydrolysis of casein, especially diamine and dxyamino 

 acids. 



Hydrolysis of casein by means of hydrochloric acid, Z. H. Skraup (Ztschr. 

 Physiol, chnn., 42 (1904), No. 3, pp. 274-296).— A fuller report of the author's 

 investigations noted above. 



The character of lecithin, R. Wii.lstatter and K. Ludecke (Ber. Deut. Chem. 

 Gesell., 37 (1904), pp. 3753-3758; abs. in Ztschr. Untersuch. Nahr. u. Genussmtl., 9 

 (1905), No. 4, pp. 218, 219). — The studies reported have to do with the chemical 

 structure of lecithin. 



Carbon tetrachlorid as a solvent in the commercial extraction of fat, L. L. 

 Bianciiim (Staz. Sper. Agr. It"/.. 37 (1904), No. ?-S, pp. 171-184).— -On the basis of 

 experimental data the value of carbon tetrachlorid for the extraction of fat is pointed 

 out and discussed. The author notes that at present, though a valuable solvent, it 

 is comparatively high in price. 



On the determination of solids in milk preserved with formalin, H. Hoft 

 (< 'In in. Ztg., ."■> ( 1905), No. 5, p. 54). — The percentage of solids in the milk was not 

 appreciably increased by the addition of 4 drops of formalin per 100 cc. of milk. 

 Larger amounts of formalin caused an increase of 0.1 per cent and more. The length 

 of time during which the milk was subjected to the action of formalin was apparently 

 without influence on the content of solids. 



Fat analysis, A. Olig (Ber. Untersuch. Emmerich, 1903-4, pp. 15-18; abs. in 

 Ztschr. Untersuch. Nahr. u. Genussmtl, 8 (1904), No. 7, pp. 431, 432). — This article 

 has to do with methods of fat analysis with special reference to judging the quality 

 of culinary fats in inspection work. 



Improved apparatus for the determination of milk fat by the Gottlieb- 

 ROse method, A. Rohrio (Ztschr. Untersuch. Nahr. n. Genussmtl., 9 (1905), No. 9, pp. 

 531-538, fig. 1). 



Experiments with the Paasch and Larsen lactoscope, R. Eichloff (Milchw. 

 ZentbL, 1 (1905), No. ■'>, pp. 123-130).— The results by this method were slightly 

 higher than by the Babcock and Gerber methods. This was especially true in the 

 case of sour milk. 



Determination of butter fat in the presence of cocoanut fat in margarin, 

 A. Kihschner {Ztschr. Untersuch. Nahr. u. Genussmtl., 9 (1905), No. 2, pp. 65-70). — 

 The author describes a modification of the method of K. Jensen, which is based 



