n CONTENTS. [Vol. 35 



Page. 



Improved methods for fat analysis, Holland, Reed, and Buckley _ 205 



The use of enzyms and special yeasts in carbohydrate analysis, Davis 206 



Determination of reducing sugars in presence of excess of sucrose, Maquenne. . 206 



An apparatus for digesting crude fiber, Pickel 206 



A furnace for crude fiber incineration, Pickel 206 



Analysis of maple products. — VII, Electrical conductivity test for sirup, Snell . 206 



A comparison of methods for the determination of casein in milk, Hersey 207 



Occurrence and determination of creatin in the urine, McCrudden and Sargent. 207 



The reduction of As* to As^ by cuprous chlorid, Eoark and McDonnell 207 



New methods for the analysis of lime-sulphur solutions, II, Chapin 207 



Phenolic insecticides and fungicides, Gray. 208 



Progress in peanut milling, Reese - 208 



Some chemical changes in the resweating of seed-leaf tobacco, Kraybill 208 



METEOROLOGY. 



Report of the meteorological station at Berkeley, California, 1914, Reed 209 



Meteorological oliservations, Stevens 209 



Meteorological ol)servations at Massachusetts Station, Ostrander and Potter 209 



Weather summaries, Waldron 209 



Climatic conditions of Minnesota, Piu-ssell - 209 



Climate and meteorology [of New Zealand], Bates 210 



Climatic changes in historic and prehistoric times, Pettersson 210 



Periodicity in sunspot phenomena and relation to climatic changes, Pettersson. 210 



The drying up of the earth, Kassner 210 



A new sampling apparatus for the determination of aerial dust, Palmer 210 



SOILS — FERTILIZERS. 



Effects of climate on important properties of soils, Lipman and Waynick 210 



Contribution to the study of clay, Muntz and Gaudechon 211 



Effect of grinding on the lime requirement of soils. Cook 212 



Albuminous bases formed from organic matter of soils by hydrolysis, Shmuk. . 212 



[Soil moisture studies] 212 



Soil gases, Leather 212 



Agronomic and soil conditions in the Selby smoke zone, Shaw and Free 213 



Mississippi: Its geology, geography, soils, and mineral resources, Lowe 213 



Soil survey of Johnson County, Missouri, Tillman and Deardorff 213 



The soils of Antigua, Tempany 214 



Studies on soil protozoa, Waksman 214 



The spirit of the soil, Knox 214 



Bacterial activities and crop production, Brown 215 



The reclamation of bog land 215 



Analysis of plants and soils to determine nutritive substances, Pfeiffer et al. . . 215 



Carbon and nitrogen changes in the soil variously treated. Potter and Snyder. . . 216 



Influence of humus-forming materials on bacteria, Brown and Allison 216 



The action of stimulants on plant development, Schulze 217 



Influence of organic materials on the soil nitrogen, Wright 218 



The fixation of nitrogen in stable manure, Gerlach 218 



Fertilizer experiments with different ammonium salts, Ahr 218 



Fixation of atmospheric nitrogen. Summers 219 



The cyanamid process, Washburn 219 



The utilization of bones as fertilizer, Lavenir 219 



A reconnoissance for phosphate in the Salt River Range, Wyoming, Mansfield . 219 



Effect of superphosphate on wheat yield in New South Wales, Waterhouse 219 



Evaporation of brine from Searles Lake, California, Hicks 219 



Twenty questions on hme, Bear 220 



Sulphur in relation to soils and crops, Ames and Boltz 220 



The fertilizing power and harmfulness of fertilizing materials, Vivien 221 



Fertilizer registrations for 1916, Cathcart 221 



AGRICULTURAL BOTANY. 



Physiological changes accompanying breaking of the rest period, Howard 221 



The bearing of certain senile changes in plants on present theories, Benedict. . 222 



The favorable influence of nitrogen salts on seeds sensitive to light, Gassner. . . 222 



Promotion of germination, by nitrogen, of seeds sensitive to light, Gassner 222 



Light and temperature as related to the germination of seeds, Gassner 222 



