376 EXPERIMENT STATION RECORD. 



obtained by freeziii^n' the distillate, on account of the presence of vola- 

 tile acids. The author regards an abnormally high electrical conduc- 

 tivity as an indication that a chemical examination shoidd be made, as 

 this may be due to the presence of sodium chlorid, sodium phosphate, 

 or to niagnesiii added to neutralize the free acids. — w. i). ijigelow. 



The estimation of the acid content of malt, E. Pimor {Bayer. 

 Brail. Jour., i, j>. 74; Vierteljahr. Chcin. Xalir. nud Gcuusfi7ntl., .9, 

 2J. 10:2). — A 2-hours' extraction with 20 i)cr cent alcohol was found 

 insutlicient to dissolve all the acid. It should l)c continued lU to 14 

 hours. At ordinary temperatures chloroform water retards the forma- 

 tion of iicids. — W. 1). P.KiELOW. 



Cane sugar in malt and -wort, V^. Prior {Bayer. Brau. Jottr.j 4, p. 

 49; VierteJjahr. Chem. Nakr. mid Genussmtl.^ 9, p. 103). — The varia- 

 tions in the amount of cane sugar in malt and wort have considerable 

 influence on the degree of fermentation, and the ordinary malt analysis, 

 by which only reducing sugar is determined, is not sufficient. — w. u. 



BIGELOW. 



On blue iodin-starch and the molecular structure of "dissolved" starch, 



F. W. KfsTEit (Chcm. Zti/., 18 (1S94), Xo. 70, p. l',13). — An tibstract of ;i papur read at 

 the Vienna nieetiuu,' of the Asso'-iation of German Natural Scientists and Physicians, 



The action of alkalies on glucose, F. Gand {Cinnpt. Rend., 119 {1S94), Xo. 15, 

 lil). (]04-C0n). 



Xylose and phloroglucin, C. Councler (Chem. Zttj., IS (1S94), Xo. S3, pp. 1017, 

 ICIS). 



Some of the chemical properties of myrosin, L. Guignahd {BuL Soc. Hot. 

 France, 41 (1894), Xo. 6 and 7. pp. 418-438). 



Proteids of cotton seed, T. B. Osborne and C. G, Voorhees (Jour. Ainer. Chem. 

 Soc, 16 (1894), Xo. 11, pp. 778-783). — The same as reported in Couuecticut State Sta- 

 tion Report for 1893, pp. 211-217 (E. S. R., 5, p. 1081). 



Proteids of the kidney bean, T. B. Osborne (Jour, Amer. Chem. Soc., HI (1804), 

 Xo. 9, pp. 633-643; Xo. 10, pp. 703-711; Xo. 11, pp. 757-764).— The same as reported 

 in Connecticnt State Station Report for 1893, pp. 186-210 (E. S. R., 5, p. 1080). 



A method for determining calcium oxid in quicklime, W E, Stone and F. C. 

 SciiEUCU (Jour. Amer. Chem Soc, 16 (1894), Xo. 11, pp. 721-725). — The method is 

 essentially as follows: "Approximately 1 gm. of the finely pnlverized material is. 

 shaken with 150 cc. of a 10 per cent sncrose solution dnring 20 miuntes, the solution 

 filtered, and the clear filtrate titrated with standardized hydrochloric acid, nsing 

 trojiicolin or rosolic acid as an indicator." 



Determination of nitrogen in nitrate of soda, etc., II. Bidow (P/(fl/-)H. (ien. Her., 

 1894, Xo. 4, p. 185; abs. in, Chem. ZUj., 18 (1894), Xo. 84, Repert.. p. i?i;).— Attention 

 is called to danger of error from incomplete distillation by following the directions 

 in the alcohol method to distill until alcohol disappears. 



Pemberton method for determining phosphoric acid, I- K. Fraxkel (Amer. 

 Pert., 1 (1S94), Xo. 1, pp. 28. 29). 



Phosphoric acid determinations, C. Glaser ( ./wct-. Fert., 1 (1894), Xo. 3, pp. 

 143-145). — Uniformity urged. 



On the estimation of phcsphoric acid by titration of the yellow^ precipitate, 

 B.W. KiLdOKE (Jour. Amer. Chem. Soc, 16 (1894), Xo. 11, pp. 765-773).— This isapaper 

 read before the Association of Official Agricultural Chemists at its 1894 meeting 

 (E. S. R., G, p. 180). 



A modification of Tollens' fat extraction apparatus, U. 'Mua>:<k(J!oII. Soc Xatur- 

 alistiin XapoU, S (1891), pp. 1-3, abs. in Chem. CenibL, 1894, II, Xo. 15, p. 642^ JUj. 1). 



