cently examined by them this reddish tint was most pronounced. — 
Pharm, J., Lond., 1905, v. 21, p. 146. 
Ziegelmann, E. F., reports some experiments with freshly dis- 
tilled oils of wintergreen and birch from authentic sources. He 
enumerates the constants obtained and describes the methods fol- 
lowed. — Pharm. Rev., 1905, v. 23, p. 83. 
OLEUM GrOSSYPII SEMINIS. 
Schwartz, D., in a paper read before the Am. Ass. Adv. Sc., 1905, 
discusses the refining, pressing, grading, and uses of cotton seed oil. 
He estimates that 75 per cent of the annual production of 120,000,000 
gallons of oil is used for food purposes. — Exp. Sta. Pec., 1906, v. 17, 
p. 613. 
An abstract, discussing the tests for cotton seed oil, asserts that 
the Becchi reaction, substantially that adopted by the Ph. Brit., is 
well known to be unreliable. 
Raikow (Cliem. Zt g., 1005, pp. 562-583) claims to oxidise cotton seed oil with 
potassium permanganate and cause it to lose the property of yielding the 
Halpheu reaction. He therefore considers the color due to an unsaturated acid, 
and his conclusion is probably correct, Halpheu to the contrary notwithstand- 
ing. — Cliem. & Drug., Lond., 1905, v. 67, p. 67. 
Halpheu, G., discusses the experiments made by Raikow, and ex- 
presses the belief that the hypothesis proposed by the latter is not 
justified. — Ann. de chirn. analyt., Paris, 1905, v. 10, p. 11. 
Tolman, L. M., quotes a cold test for cotton seed oil, presented by 
the New York Produce Exchange, as follows : 
A regular 4-ounce sample bottle filled with the oil to be tested, with a 
thermometer inserted through the cork, is hermetically sealed. The oil is then 
heated siowly to a temperature of 80° F. and held at that temperature for not 
exceeding fifteen minutes, it should remain clear, brilliant, and limpid for at 
least five hours at 32° F. — Proc. Ass. Off. Agr. Chem., 22 Ann. Conv., p. 67. 
Emmett amLGrindley review the literature on the presence of 
cotton seed oils in lards, from hogs fed upon cotton seed meal, and 
recount a series of experiments made to determine the presence of 
cotton seed oil. They conclude that these lards do contain a vege- 
table oil, and that they appear at least to contain three distinct con- 
stituents of cotton seed oil. It would therefore appear that a part 
at least of the oil existing in cotton seed meal is absorbed in the case 
of hogs fed upon this ration by the animal and transmitted in its 
unaltered condition to the fat cells. — J. Am. Chem. Soc., 1905, v. 27, 
pp. 263-270. 
Tolman, L. M., reports a series of experiments to determine the 
presence or absence of phytosterol in lard from cotton seed meal fed 
hogs. He concludes that this lard does not contain phytosterol, that 
added cotton seed oil can be detected by the phytosterol acetate 
