METEOROLOGY WATER. 421 



states that lie lias piu-poscly oiiiillcd rcrcrciicrs to discussions of laboratory 

 iiH>tli()(ls. Tlirou^'hout the vohiinc imuicrous iTrcrciiccs arc made (o the litera- 

 tiii-c of the subjects treated, and indexes are provided. 



Proceedings of the fifili annual meeting of the Association of German 

 Food Chemists {Ztsvltr. infcrsiiclt. Xalir. it. Gciiussintl., 12 (,1906), A'o. 1-2, 

 l>l>. ;-/i'/).— This meetiuf; was held at Niiriiberj,', May 2"., 20, lOOG. * 



Tapers on the following sub,ieets were jiresented and discussed: Food control 

 and its ditliculties, by J. Kiiuis; spices, by E. Siiaeth ; fruit .iuices and jellies, 

 by W. Fresenius; the examination and jud.i^inj? of carbonated lemonade, by 

 A. r.eythien ; the use of saponin in carbonated beveraj,'es, by E. Schaer ; judg- 

 ing the jiurity of water, by II. (Jrosse-I'-ohle ; the glazinj? of coffee, by E. 

 Schaer; cocoa and chocolate, by II. I'.eckurts; contribution to the knowledge 

 of cocoa. I)y II. .Mattlics and I'. .Miiller; the inlluence of cocoa on the organism, 

 by U. ( ». .Xcnmann : t!ie soi.inin <-ontent of potatoes, by M. Wintgen ; judging 

 wine and wine legislation. Iiy W. Freseiuns : poisoning with phosphoreted 

 liydro.u'cn. 1)\- I'. Lehnkerini,'' : and chemical investigations of Mosel wine, by 

 W. I. F.aragiola. 



ReiDort of the chemical section of the Wellcome research laboratories, 

 Gordon College, Khai'toum, W. I'>eam (Khartoum: Dcpt. Ed., Sudan, (lurt., 

 I'JiiG. pp. 20.')~2'i'i. fills. !.')). — Included in this report are analyses of Nile River 

 water: the milk supply of Khartoum; several commercial dried milks; Sudan 

 grains, including wheat, corn, sorghum, millet, lentils, Mt/iia sinensis, and 

 Doliclios lalilab: salt; limestone; gums; and other products. Notes are 

 given on llie detei-mination of viscosity of gum solutions, the use of asbestos as 

 a funeral shroud, on a new form of hydrometer, on the determination of crude 

 tiber. and on a simple form of blast lamp for use with benzine. The hydrom- 

 eter consists of the ordinary form provided with a float made of a hollow ring 

 of glass, supi)orting an ui)right short section of amber colored glass tubing, at 

 the top of which rather than at the surface of the liquid the reading is taken. 



Annual report on the progress in agricultural chemistry, 1905, T. Diet- 

 Kicii ET .M.. t./dhrcslicr. A(/r. CIkiii.. .'>. .s-rr., ,S {l!i(>')), pp. AA'A"17 -1- 561). — 

 This contains the usual abstracts of important articles on agricultural chem- 

 istry ai)pearing during the yi>ar with titles of articles of less importance. 



Drug legislation in the United States, L. F. Kebler and E. T. Ragan ( U. »s'. 

 Drpt. A(jr.. liiir. ('Iicni. Bui. US. pp. 217). — This is a compilation of all the 

 National and State laws in force governing the sale of drugs. 



METEOROLOGY WATER. 



The classification of climates, K. DkC Waud (lUd. Aincr. Gcogr. Soc, 38 

 (1906), Nos. 7, pp. Ji01-.'il2, flfis. 3; 8, pp. .'i6.',-.',77, pis. 2, p</.% 7).— "It is the 

 object of this article to give a brief summary of the general climatic types 

 which result from the control of land and water, and of altitude over the more 

 important elements of climate." The author describes particularly Supan's 

 climatic provinces, the classifications of Koppen and Unit, and Raveustein's 

 bygrothermal types. 



He concludes that the bi'oad classification of climates as marine, continental, 

 and mountain, with the subdivisions of desert, littoral, and monsoon is con- 

 venient for purposes of indicating the interaction of climatic elements under 

 the ccmtrol of land, water, and altitude, but for detailed study some scheme 

 of classification in which similar climates in different parts of the world are 

 gronjied together and geographic distribution receives particular attention is 

 needed. 



