CHEMISTRY. 877 



recomineiidod by Cerych at-aiii yields a solution wliicli oives a turbidity 

 with tanuiii wlieu soaked in water, as tlumgli the hide liber were con- 

 verted into gelatin by tlie action of water at the ordinary temperature. 

 This is prevented to some extent by treating- the hide powder with an 

 antiseptic such as lysol or mercuric chlorid. 



Thirty-live grams of pure unsized tilter i)aper is pulped in 2 liters of 

 2 \)ev cent lysol solution ; 100 gm. of hide powder is added and allowed 

 to remain several hours. The mass is drained on a funnel, pressed, and 

 treated, once with juire water, once with dilute alcohol, and once with 

 strong alcohol. The mixed powder and paper are then allowed to dry 

 over night and pulverized. — w. H. krxtg. 



Division of chemistry of Kentucky Station, A. M. Peter {Ken- 

 tucky Sta, Rpt. 1805^ pp. XI-XXV). — Analyses are given of sorghum 

 cane, butter, distillers' grains or dried distillery slop, sugar beets, min- 

 eral waters, saltpeter made from tobacco stems, coal, iron ore, limestone, 

 niter earth, "White Burley tobacco, tobacco stems, tobacco ashes, ash 

 of corn stover, corundum, cider, and phosphatic fossil shells. In 4 

 samples of butter the fat varied from 75.15 to 82.09 per cent, and the 

 water from 11. SO to 14.41 percent. The samj)le of "dried distillers' 

 grains" contained water 8.60 j)er cent, crude jirotein 29.94, albuminoids 

 28.88, fat 8.94, nitrogen-free extract 39.': 9, fiber 11.02, and ash 1.51. The 

 salt|:)eter from tobacco stems was obtained as a by-product in tlie man- 

 ufiicture of tobacco extract. It contained from 40.92 to 45.02 i)er cent 

 of potash and from 11.59 to 12.90 per cent of nitrogen. 



The cleavage products of albumen, S. G. Hedin (Zfschr. physiol. Chem., 22 {1S96), 

 No. 2, pp. 191-196). — The author describes a base isolated by liim from casein, from 

 albumen of white and yolk of ei^g, from blood serum, and from horn. The author 

 thinks it is A-ery likely that the chlorohydrate of the base is identical with that 

 described by Sieuiried. ' 



Researches oa arabinose, Berthelot and G. Axdre [Compt. Rend., 123 {ISDG), 

 No. 17, pp. 625-631), — A study of the action of hydrochloric acid and phosphoric acid 

 on arabinose under varying pressures. 



Concerning lucifererase or photogenetic zymase of animals and plants, R. 

 Driiois (Coiiipt. Ilnul., 123 {1S9G), No. 17, pp. 653, 654). 



The accuracy of Winkler's method of determining oxygen in solution in 

 drinking -water, G. W. Chlopix {Arch. JIy<j., .27, No. 1, pp. lS-33). 



Anew reagent for detecting and determining nitrites, M. C. Schuyten (Chem. 

 Ztg., 20 (1896), No. 75, pp. 722, 723). — When 5 cc. of a 1 per cent solution of antipy- 

 rin in acetic acid ( i^,,) is added to a solution containing nitrites, a green color (juickly 

 apiiears which is distinct for vttottit of nitrite. Liuie and alkalies, chlorids, bromids, 

 iodids, sulphids (and H-S), carbonates, phosphates, nitrates, borates, sulphates, the 

 salts of potassium, sodium, ammonium, calcium, barium, magnesium, aluminum, 

 zinc, iron (ferrous), lead, bismuth, cadmium, tin, as well as organic substances 

 (sugar, alcohol, and phenol), if not in too concentrated solution, apjiarently do not 

 affect the reaction. 



On the determination of phosphoric acid in organic matter {Ann. Afjron., 22 

 {1896), No, 8, pp. 392, 39.1). — The precautions to be observed to prevent fusion of the 

 alkaline phosphates in incineration are discussed, and the methods of incineration 

 in a current of carbonic acid proposed by Schlossing and with sulphuric acid are 



I Ber. deut. chem. Ges., 24 (1891), p. 428. 



