716 EXPERIMENT STATION RECORD. 



Some records of the year's progress in applied chemistry, W. McMurtriE 

 (Jour. Amer. Chem. Soc., 20 (1898), Xo. 12, pp. 967-987). 



Report of the chemist, E. FULMER ( Washington Sta. Bpt. 1896, pp. 45-56). — This 

 is a brief summary of the work of the year ending June 30, 1896, and includes 

 analyses of clays, chloropal, flaxseed, alum, limestone, hematite, Cottonwood ashes, 

 mineral water, coal, neat, fir ashes, water from city supply of Ballard, Washington, 

 potatoes, Paris green, starfish ashes, corn juice, dried blood, bone, 7 samples of mixed 

 fertilizers, muriate of potash, sulphate of potash, double manure salt, kainit, and 

 conglomerates. Brief summaries are also given of results of investigations on the 

 nitrogen content and humus of Washington soils (E. S. R., 9, p. 33). 



Laboratory notes, P. H. Storer (Bui. Bussey Iuxt., 2 (1S9S), VII, pp. 409-421).— 

 These include the determination of wood gum in the "doty" wood of the birch; the 

 estimation of cellulose, lignic acids, xylan, and wood gum in peach stones; extrac- 

 tion of wood gum from the trunks of coniferous trees by cold dilute alkaline solu- 

 tions; wood gum in the strawberry; the question of the presence of xylan in the 

 membraneous covering of the starch grain ; and an analysis of a sample of ashes 

 left on burning the bamboo baskets in which sugar is exported from Java. 



Micro-chemical detection of perchlorates in nitrate of soda, M. van Breukele- 

 vekjj (Rec. Trav. Chim., Bays-Bas, 17 (1898), pp. 94, 95; Bui. Soc. Chim. Baris, 19 (1898), 

 Ko. 20-21, p. 80S; abs. in Jour. Chem. Soc. [London], 74 (1898), Xo. 431, II, p. 482).— 

 The method proposed is as follows: Distil 10 gm. of nitrate in 100 cc. of water, add 

 50 cc. of 95 per cent alcohol, boil, and let stand for 2 hours to crystallize. Filter, 

 evaporate to dryness, distil the residue in the least possible quantity of water, and 

 test by Behren's method (mixing the solution with rubidium chlorid on a microscope 

 slide and coloring (r,ed) the rhombic crystals formed with potassium permanganate). 



On the ignition of ammonium-magnesium phosphate with the filter paper, 

 H. Mastbaum (Ztschr. Anahjt. Chem., 73 (189S), pp. 581,582). — The author places 

 the filter while still wet in a crucible and heats at once in the full flame of a 

 Bunsen burner, usually for 15 to 20 minutes, adds 2 or 3 drops of nitric acid, heats 

 gently until the acid is expelled and then for a half a minute in the full flame. This 

 method is considered rapid and convenient and fully as accurate as that proposed by 

 Schmoeger, 1 in which the filter with the precipitate is dried in an oven before ignition. 



The use of formaldehyde for the determination of noncoagulable albuminoids, 

 especially as applied to the analysis of gelatin, A. Trielat (Bui. Assoc. Chim. 

 Sucr. et Distill, 16 (1898), Xo. 6, pp. 544-546). 



Purification and decolorizing of sugar solutions by ozone, by electrolysis, 

 and by both simultaneously, F. Peters (Ztschr. Elehtrochemit, 5 (1898), p. 265; abs. 

 in Jour. Bhys. Chem., 3 (1899), Xo. 1, p. 65). — It was found that sirups were purified 

 vei-y much more effectively by the simultaneous action of ozone and of electrolysis 

 than by either method taken singly. 



Method of preparing protein from solutions, especially those from spirits, 

 yeast, sugar, and starch manufactories, A. Glaser (Xeue Ztschr. Riibenz. Tnd., 41 

 (1898), Xo. 15, pp. 160, 161). — The process has been patented in Germany. 



A chemico-physiological study of certain derivatives of the proteids, R. H. 

 Chittenden, L. B. Mendel, and Y. Henderson (Amer. Jour. Bhysiol., 2 (1899), Xo. 

 2, pp. 142-181, dgms. 9). — The physiological effect of the cleavage products of antial- 

 bumids, antialbumoses, antipeptones, and other similar products derived from egg 

 albumin and gelatin are reported, as well as studies of the chemical nature and gen- 

 eral properties of these proteids. 



The most important vegetable foods and condiments, A. E. Vogl (Die Wich- 

 tigsten Vegetabilischen Xahrungs- und Genussmittel. Vienna: Urban <$• Schwarzenberg, 

 1899, pp. XV -\- 575, figs. 271). — This volume, which is the outcome of the author's 

 connection with the Entwiirfe fur einen Coder alimenlarius Axistriacus, is a manual 



1 Ztschr. Analyt. Chem., 73 (1898), pp. 308-310. 



