n CONTENTS. [Vol. 35 



Page. 



Volumetric determination of potassium in fertilizers, Ajon 315 



The use of enzyms and special yeasts in carbohydrate analysis, Davis 315 



Titrating monosubstituted amino group of amino acids with formol, Clementi.. 315 



Concerning the protein content of meat, Jarmey 315 



The rapid analysis of milk, Pegurier 316 



Note on human milk, Elsdon 316 



[Direct sucrose determinations in the presence of reducing sugars], Schneller. . 316 



Studies on the analysis and analytical products of glucose. Van der Linden 316 



The American Leather Chemists Association, 1916 316 



[Report of the] bacteriological department, Owen 316 



The products of the farm slaughterhouse, etc., Haring and Hislop 317 



Forest chemistry, Puran Singh 317 



The conifer leaf oil industry, Schorger 317 



METEOROLOGY. 



Illusions of the upper air, Shaw 317 



Night cooling and the importance of the dew and frost points, Schubert 318 



Frost protection for fruit and vegetables in the United States 318 



The weather of 1915, Murray 318 



The weather of the past agricultural year, Brodie 318 



Hailstorms and hail prevention during 1915 in France, Angot 318 



Annual distril)ution of cloudiness in France, Bigourdan 318 



International catalogue of scientific literature. F — Meteorology 318 



SOILS — FERTILIZERS. 



Soil courses at the Iowa State College, Brown 319 



Mechanical study of soil, Hissink 319 



The colloids of clay and humus soils, Rohland 319 



Experiments on water holding in vegetation pots, Ehrenberg, Bahr, and Nolte. . 319 



Miscellaneous samples, soils, Heimburger 319 



Soil survey of Elkhart County, Indiana, Jones and Hosier 319 



Soil survey of Lafayette Parish, Louisiana, Meyer and Kirk 319 



Soil survey of Ramsej'' County, Minnesota, Smith and Kirk 320 



Report on the soils of Fiji, I, Wright 320 



Some Johore soils, Grantham 320 



Nitrogen fixation and Azotobacter forms in foreign soils, Lipman and Burgess. . 320 



Nitrification and total nitrogen as affected by crops, etc., Jensen 321 



The use of nodule bacteria for legumes, Kock 322 



Recent investigations on the production of plant food in the soil, I, Russell 322 



Manurial experiments, Kelkar 323 



Report on field fertilizer experiments at Bemau, Baimaann and Paul 323 



Pot culture experiments, 1194, Voelcker 324 



The Illinois system from the standpoint of the farmer, Brother Leo 325 



The use of fertilizers in 1916, Brooks 325 



Growing crops without potash in 1916, Woods 325 



The action of new nitrogenous fertilizers, Gerlach 325 



Phosphates and honesty, Hopkins 325 



The fertilizing action of the slightly soluble phosphates, Soderbaum 326 



Displacement of potash and phosphoric acid of rocks by fertilizers, Andr6 326 



Feldspar as a possible source of American potash, Cushman and Coggeshall. .. 327 



Potash from fij wood mill waste, Zoller 327 



Potash from kelp in commercial large-scale operation , Laucks 327 



The composition and use of certain seaweeds, Hendrick 327 



The fertilizing action of sodium chlorid, Schulze 328 



Bat fertilizers, Ageton 328 



Notes on the chemical composition of Karroo ash, Juritz 328 



Fertilizer analyses. Patten, Winter, Jensen, and Berger 328 



Tabulated analyses of commercial fetrilizers and fertilizer materials, Sample. . 328 



Commercial fertilizers, inspection 1195, Hite and Kunst 326 



AGRICULTURAL BOTANY. 



Agricultural bacteriology, Russell and Hastings 328 



Determining types of genera. Cook ^. 328 



Physiological temperature indices for the study of plant growth, Livingston. . . 328 



Acacia seedlings, Cambage 329 



