562 EXPERIMENT STATION RECORD. 



Four samples of sweet potatoes contained in the dry substance 52.3, 

 56.28, 63.69, and 67.12 per cent of starch. Two samples of millet seed 

 contained in the dry substance 53.76 and 70.75 per cent of starch. 

 With respect to the analyses of commercial fertilizers, the analyses of 

 which are not given, the statement is made that — 



"Twenty-three of the 206 samples, or 11.16 per cent, are below guarauty. 



"These results show an improvement in the commercial fertilizers on onr market; 

 for while the manufacturers have in some cases made lower guaranties this year the 

 average percentages of fertilizing ingredients actually found this year are for the 

 most part higher than those of last year. The only marked exception is in the case 

 of cotton-seed meal, in which the average of ammonia is somewhat lower. 



"It should be added that all fertilizers of last year which fell below guaranty in 

 any ingredient were classed as 'deficient,' while for this year only three are 'defi- 

 cient' under the present law, which requires only that the commercial value based 

 upon results of analysis shall not fall 3 per cent below the commercial value 

 based upon guaranty." 



The action of phosphorus on platinum, A. Granger (Compt. Rend., 123 {1896), 

 No. 26, pp. 1284, 12S5). 



The estimation of potash by the Caruot method, E. Goutal {Ann. Chim. 

 Anahjt., 1, pp. 89-91; abs. in Analyst, 21 {1896), Aug., p. 216). 



A ne^w reagent for asparagin, L. Moulin {Jour. Pharm. et Chim., ser. 6, 16 {1896), 

 p. 543; ahs. in Anah/st, 21 {1896), Dec, p. 332). 



The estimation of starch in sausage, F. Mayrhofer {Forsch. ii. Lebensmtl. und 

 Eyg. Client., 3 {1896), Xo. 13, pp. 429, 430). 



A color reaction for peanut oil, A. Van Engelen {Bui. Assn. Beige, 10 {1896), 

 pp. 161, 162; ahs. in Analyst, 21 {1896), Oct., p. 258). 



Examination of the oil of linseed cake, B. A. Van Ketel and A. C. Axtlsch 

 {Ztschr. angew. Chan., 1896, pp. 581-583; ahs. in Analyst, 21 {1896), Nov., p. 299). 



Measurement of rancidity of fats other than butter, A. Scala {Staz. Sper. Agr, 

 Ital, 28, p. 733: ahs. in Analyst, 21 (1896), Nov., p. 298). 



The detection of borax in butter, Planchon and Vuaflart {Jour. Pharm. et 

 Chim., 1896, pp. 49-51; ahs. in Analyst, 21 {1896), Nor., p. 286). 



Detection and estimation of sodium bicarbonate in milk, L. Pade {Ann. Chim. 

 Anahjt., 1, p. 328; ahs. in Analyst, 21 {1896), Nov., p. 286). 



Detection of formic aldehyde in milk, C. Deniges {Bui. Soc. Pharm. Bordeaux, 

 1896, July, p. 212; aha. in Ann. Chim. Analyt., 1, p. 316; and Analyst, 21 {1896), Nov., 

 p. 285). 



Value of various chemicals for preserving milk -which is to be kept a long 

 time for investigation, ,J. Klein {Milch Ztg., 26 {1896), No. 47, pp. 745-748).— Aa a 

 result of trials of a large number of preservatives the author recommends ammo- 

 niacal copper sulphate. From 0..5 to 1 per cent is added to the milk, which is well 

 shaken. Where possible the milk should be tested within a mouth. For keeping 

 milk a short time the copper salt of formalin is recommended. 



Detection of foreign coloring matters in red -wines, A. Belar (Ztschr. analyt. 

 Chem., 35 (1896), p. 323; ahs. in Analyst, 21 (1896), Nov., p. 289). 



The determination of free lactic and succinic acids in -w^ines, J. A. Muller 

 (Bui. Soc. Chim. Paris, 15-16 (1896), No. 23, pp. 120.3-1206). 



Lactic acid in Algerian -wines, J. A. Muller (Bui. Soc. Chim. Paris, 1.5-16 (1896), 

 No. 23, pp. 1210-1213). 



The detection of nitric acid in -wine, E. SiLZ (Rev. Chim. anal, appliq., 4 (1896), 

 p. 477 ; ahs. in Chem. Ztg., 20 (1896), No. 104, Repert., p. 314). 



Estimation of phosphoric acid in medicated -wines, F. Glaser and K. MOhle 

 (Chem. Ztg., 20 (1896), No. 75, p. 723; ahs. in Analyst, 21 (1896), Nov., p. 292). 



Optical analysis of urine and the exact determination of proteids, glucosids, 



