n CONTENTS. 



Page. 



The reversibility of ferment action, Bourquelot 311 



Action of Bucrase from koji in presence of acids, Bertrand and Rosenblatt 311 



Action of hydrogen peroxid upon the amylase of woman's milk, Lagane 311 



Significance of hydrogen ions for rennet and acid coagulation, Allemann 311 



Effect of salts of rare earths on coagulation by rennet, Frouin and Mercier 312 



Does milk contain phosphatids? Njegovan ^ 312 



The dominance of Roquefort mold in cheese. Thorn and Currie 312 



Progress in milk chemistry and dairying during second half of 1912, Grimmer. . 313 



The chemistry of rubber, Porritt 313 



Red cabbage extract as an indicator for hydrogen ion concentration, Walbum. . 313 



The separation of o-alanin and ^- valin, Le vene and Van Slyke 313 



Examination of hydrocarbon oils and fats, Holde 313 



New viewpoints for the analysis of oils and fats, Bomer 314 



Yearly progress in the examination of foods and condiments, Beckurts et al. . . 314 



Differentiation by biological means of Indian buffalo meat and beef, Schadauer. 314 



A rapid and easy formula for the fat-free dry substance in milk, Hoyberg 314 



Estimation of lactose in milk, Sanfelici 314 



Determination of fat in dried milk, Rusche 314 



A handbook of sugar analysis, Browne 315 



Determination of reducing sugars by Lehmann 's method, Grimbert 315 



The estimation of methyl alcohol in spirits, etc., Hetper 315 



The analytical estimation and technical preparation of cellulose, Konig 315 



Estimation of cellulose in woods and textile fibers, Konig and Hiihn 315 



Home manufacture of cider vinegar, Van Slyke 316 



Grape juice, Bioletti 316 



Utilization of juice from waste oranges, Cruess 316 



Preser\dng and processing fruits, vegetables, etc., for exhibition. Page 316 



Bacon curing on the farm, Newsham 316 



Industrial utilization of zein, the protein of maize, Geistdorfer 316 



Proceedings of Official Agricultural Chemists, edited by Bigelow and Savage.. 317 



METEOROLOGY — WATER. 



Agricultural zones of the Tropics in relation to climate. — I, America, Hennig. 317 



Bulletin of the Mount Weather Observatory 317 



Meteorological observations at Massachusetts Station, Ostrander and Dexter. . . 317 



Weather report, Day 317 



Evaporation by months at 23 stations in the United States, 1909-10, Bigelow. . 317 



Annual precipitation of United States for the years 1872 to 1907, Bigelow 318 



Precipitation in western Kansas, Day 318 



Precipitation in the Panhandle region of Texas, Bigelow 318 



[Rainfall and flow of streams in Massachusetts in 1912] 318 



The effects of ice on stream flow, Hoyt 318 



Report of committee on water supplies 318 



Studies of fish life and water pollution, Clark and Adams 319 



Relation of purity of water supply to typhoid fever, Ellms. 319 



The prevention of typhoid fever in the rural districts of Virginia, Freeman 319 



SOILS — FERTILIZERS. 



A descriptive catalogue of the soils of Virginia 319 



Soil building for South Carolina, Barton 320 



Formation of laterite in soils of southern Italy, Bernardini and Mazzone 320 



Report on soil studies in Bessarabia, Nabokich 320 



Deli soils, Vriens. 320 



Relation JDetween soil, vegetation, and climate of East Friesland, Schucht 321 



Demonstration of the law of minimum, Goy 321 



Evaporation of water from soils, Lipman .^ ^ 321 



The presence of arsenic as a normal element of soil, Zuccari 321 



Selective absorption by soils, Parker 321 



The inactivity of the soil protozoa, Greig-Smith 322 



Edaphon, France 323 



Studies on nitrogen assimilation by free li^dng organisms, Hutchinson 323 



Some effects of humates on plant growth, Bottomley 323 



Nitrogen compounds in the soil which are direct sources of nitrogen,. Ritter 324 



Conditions affecting the availability of nitrogen compounds, II, Lipman et al. . 324 



