CHEMISTRY. 413 



The essential oil of hops, A. C. Chapman (Jour. Fed. Inst. Brewing, 4 (1898), pp. 

 33; abs. in Jour. Soc. Chem. Ind., 17 ( 1898), No. 5, p. 486). 



Method for detecting cotton-seed, sesame, and peanut oils in olive oil, M. 

 TORELLI and R. RUGGER! (Chem. Ztg., .' .' ( 1898), No. 60, j>}>. 600-603). 



Remarks on -wine and vinegar analysis, L. Erckmann (Chem. Ztg., 22 (1898), 

 No. 66, p. 673). 



Sewage analysis and standards of purity for effluents, C. G. Moor (Analyst, 

 198), Aug., pp. 198-209). 



The Lamansky-NDbel viscosimeter, L. Singer (Chem. Rev. FeH u. Harz-Ind,., 4, 

 No. IS, pp. 243-246; ctbs. in Jour. Soc. Chem. Ind., 17 (1S9S), No. 2, pp. 182, is.;). 



Determination of water in milk, butter, etc., A. Wroblewski (Oesterr. Chem. 

 Ztg., 1 (1S9S), No. 11 , pp. 331, 332, fig. 1). — The method proposed is similar to the 

 .Adams method. Strips of paper arc rolled and packed into a weighing glass. After 

 drying t<> constant weight, the rolls arc saturated with 10 to 20 cc. of milk, weighed 

 and dried to constant weight; or in the case of butter, 5 to 10 gm. are placed in 

 small pieces on the rolls, melted by gentle heat and then dried to constant weight. 



Milk analyse:.; II, M. Weibull (A'. Laudt. Akad. Handl. Tidskr., 37 (1898\, No. 3, 

 ptf. 148-156). — Comparisons of the kaolin, paper coil and Gottlieb methods of milk 

 analysis for whole milk, skim milk, and buttermilk. 



The introduction of a un.form method for determining fat in milk, M. Weibull 

 (Milch Ztg.. 27 (1898), No. 26, pp. 406, 407).— An address delivered by the author at 

 the second Norwegian agricultural congress. After discussing the various volu- 

 metric and gravimetric methods, he concludes that the choice of a " normal " method 

 for milk control lies between the Adams gravimetric method and- Gottlieb's modifi- 

 cati :n of Rose's (volumetric) method, "as both of these gave uniform results when 

 nsed by different persons." 



Machine for rapidly calculating the total solids in milk from the specific 

 gravity and fat content (Milch Ztg., 27 (1808), No. 29, pp. 456, 457, Jig. 1).—A descrip- 

 tion of a milk scale in the form of a disk, devised by E. Ackermann. 



The calculation of "added water" in adulterated milks, II. D. Richmond 

 (Analyst, 2-1 (1S9S), July, pp. 169-174). 



On the determination of malic acid in raisins, A. Girard and L. Lindet (Bui. 

 Soc. Chim. Paris, 3. ser., 19 (1S9S), No. 13, p. 585). 



Standard methods for the sampling and analysis of tanning materials, H. R. 

 I'm x'TER and J. G. Parker (Jour. Soc. Chem. Ind., 17 (1S9S), No. 1, pp. 6-10). 



The effect of different temperatures in the extraction of tanning materials, 

 J. G. PARKER (Contrib. London Leather Industries Research Lab.; abs. in Jour. Soc. 

 Chem. Ind., 17 (1898), No. 2, pp. 106-110). 



The nicotin content of cigars and smoking tobacco sold at retail, II. Sinxhoi i> 

 (Arch. Fliarm., 236 (1898), No. 7, pp. 5 V2-5 JO). 



The development of official methods of agricultural analysis, J. Hexdrick 

 (Jour. Soc. Chem. Ind., 17 (1S9S), No. 4, pp. 326-330).— Attention is called to the lack 

 of uniformity in official analytical work in England, and the systems evolved in the 

 United States and Germany are explained. 



Uniform methods for the analyses of foods, condiments, and commercial 

 products in the German Empire, J. SPRINGER ( Vereinbarungen zur einheitlichen 

 Unter8uchung von Nahrungs- und Genussmitteln some Gebrauchsgagenstdnden far das 

 Deutsche Reich. Berlin: 1897, pt. 1; abs. Ztschr. Fleisch u. Milchhyg., 9 (1898), No. 1, 

 p. 18). — Among the subjects treated are general methods of analyses, preservatives, 

 meat, sausage, meat extract, peptones, milk, eggs, cheese, and fata and oils. 



Second meeting of the international commission for uniform methods of 

 sugar analysis (Chem. Ztg.. 22 (1898), No. 64, p. 652).— An account of the meeting 

 held at Vienna, July 31, 1898. 



The analysis of food and drugs: I. Milk and milk products, T. II. Pearmain 

 and C. G. Moor (London: Bailliere, Tindall $ Cos, 1897; rev. in Analyst. 23 (1898), 

 Aug., p. J24). 



