CHEMISTRY. 713 



Analysis of commercial glucose, determination of cane sugar in the pres- 

 ence of levulose, dextrose, and dextrin, H. Pki.let (/>»/. Assoc Chi)!). Snrr. et 

 Distill., IS (lUOI), So. 10, jip. 709-77.i). 



The determination of salicylic acid in -wine, II. Mastijatm {('Iuvi. Zlcj., 25 

 {1901), Xi>. ./•'', />/'. 4'>-'>-4''7). — A description and discnsision of methods and results. 



Chemical division, New Zealand Department of Agriculture, B. C. Aston 

 {Xeir Zc'thniil Ikpt. Agr. Rpt. I'.tol, i>jk ,.'>;9-..'SS). — Tliis is a brief report on the work 

 of the year ended March 31, 1901, including testa of Babcock apparatus; analyses of 

 waters, fertilizers, soils, cream, butter, normal and condensed milk, cocoanut cake, 

 arrowroot, fruit of the New Zealand passion flower {Passiflora tetrandra), Paris 

 green and other poisons, sorrel seed, limestones, and miscellaneous materials; and a 

 study of the dry distillation of native woods, the resin acid of the red pine or 

 Rimu {Diicnjd'tnm CMp-t's.*i'»?i>H)) alkaloids of Pukatea })ark and of Tutu (by T. H. 

 Eastertield). 



Chemical division, H. J. Wheeler {Rhode Mund Sta. Rpi. 1901, pp. 257-267). — 

 This reports briefly on the fertilizer and feeding stuff inspection and other work in 

 progress during the year, enumerates the field experiments, and gives analyses of 

 dried blood, nitrate of soda, sulphate of ammonia, air-slaked lime, potassium car- 

 bonate, muriate and sulphate of potash, sodium carbonate and chlorid, acid phos- 

 phate, floats, and Damaraland guano. 



Progress in the field of agricultural chemistry during 1900, H. G. Soder- 

 BAi-M (A'. iMxdi. Abtd. Hrnidl. Tidskr., 40 {1901), No. 2, pp. 92-lOS). 



Select methods in food analysis, H. Leffmann and W. Beam {Pliiladelphia: P. 

 Blohklov's Son d- Co., 1901, VIII+383, pis. 4, figs. 53).— A summary of analytical 

 methods, adapted to the work of advanced students and jiractical chemists. The 

 first 70 pages are occupied with general matter relative to specific gravity, boiling, 

 melting, and solidifying points, polanmetry, microscopy, extraction, distillation, sub- 

 limation, indicators, etc. The detection of poisonous metals, coloring matters, and 

 preservatives is treated in a short chapter, followed by the special methods, which 

 cover all the principal classes of food materials, such as starch, flours, leavening 

 materials, sugar and confections, fats and oils, milk and dairy products, beverages — 

 alcoholic and nonalcoholic, condiments and spices, and flesh foods. An appendix 

 contains useful tables. In addition to the methods of analysis, the origin and general 

 characteristics of the various products are briefly described, and the usual forms of 

 adulteration given. The volume is a comprehensive and convenient compendium on 

 the subject, in the light of present knowledge. 



An apparatus for ash estimations, H. Wislicenus {Ztschr. Anahjl. Cliem., 40 

 {1901) , y<). 7, pp. 441-449, figs. 3). — The described apparatus for incinerating consists 

 of the usual platinum crucible with a specially constructed cover. The air drawn 

 through by an inspirator enters at the outer edge of the cover and passes out through 

 a tube fastened at the center. The tube carrying the escaping gases is cooled by a 

 water jacket, and bnll)S are connected for collecting volatile portions of the substance 

 given off. The apparatus is similar to that of Tucker. ( K. S. R., 11, p. 506. ) 



An apparatus for determining fat, H. J. Wheeler and B. L. Hartwell {Rhode 

 Iskuid Std. Rpt. 1901, pp. ^68-273, pis. 2; Jour. Anicr. Chctn. Soc, 23 {1901), No. 5, 

 pp. 338-343, figs. 2). — An apparatus designed to overcome certain difficulties con- 

 nected with the Knorr apparatus is figured and fully described. Among the im- 

 provements attempted, as summarized, are the following: A simple flask which can 

 readily be cleaned and replace<l in the apparatus; a rubber cup carrying the mercury 

 for sealing and at the same time binding the flask to the api)aratns; the bending of 

 the tube from which the liquid ether drops so that the ether will fall upon the center 

 of the substance undergoing extraction, and the prolongation of the same tube so 

 that it may support tlu' upper end of the extraction thimble; the collection of the 



