n CONTENTS. 



METEOROLOGY — WATER. 



Page. 



Meteorological observations in connection with agriculture and forestry, Zon. . 614 



Period of safe plant growth in Maryland and Delaware, Faesig 614 



Monthly Weather Review 615 



Climatological data for the United States by sections 615 



Meteorological records, Ladd 615 



Ohio weather for 1912, Sroith and Patton 615 



Water resources of Hawaii, 1912, Pierce and Larrison 616 



Quality of the surface waters of Washington, yan Winkle 616 



Colloids in water and sewage purification, Stein 616 



SOILS — FERTILIZERS. 



Separation of soil particles according to specific weight, Konig et al 616 



Distribution of certain constituents in separates of loam soils, Steinkoenig 618 



Influence of electrolytes on the coagulation of clay suspensions, Wiegner 618 



The properties of red colored soils, Blanck and Dobrescu 618 



Acid mineral soils, Daikuhara 618 



Soils and subsoils, Sherzer 619 



The excessive quantities of nitrates in certain Colorado soils, Headden 619 



The soils of the island of Luzon, Cox, and Argiielles 619 



Analysis of soil samples from German Southwest Africa, Grimme 620 



Nyaaaland soils 620 



Moor culture, Sierig 620 



The soil solution and the mineral constituents of the soil, Hall et al 620 



How does the plant obtain its nutriment from the soil? Hall 620 



Harmful effects of aldehydes in soils, Schreiner and Skinner 620 



Occurrence of aldehydes in garden and field soils, Schreiner and Skinner 620 



Contributions to our knowledge of soil fertility, VII-XI, Greig-Smith 620 



The sterilization or disinfection of the soil, Bert-hault 621 



Rock and soil in relation to plant nutrition, Blanck 621 



Composition and fertilizer requirements of North Carolina soils, Plummer 621 



Fertilizer experiments in the German colonies 622 



Penguin guano from the Falkland Islands 622 



Fertilizer factory for the Bahamas 622 



The atmospheric; nitrogen industry in its economic relations, PerUck 622 



Influence of phosphatic and potash fertilizers on composition of hay, Dusserre. 622 



Geology of phosphate deposits near Georgetown, Idaho, Richards and Mansfield. 622 



Note on certain phosphate deposits in western Madagascar, De la Bathie 623 



Effect of ensilage fermentation and animal digestion on phosphate rock, Mooers . 623 



Effects of ensilage process on solubility and metabolism of floats, Forbes 623 



Effects of ensilage process on solubility and metabolism of floats, Mooers 623 



Potash 623 



The lime factor theory, Loew 623 



The question of sulphur in agriculture, Mifege 623 



Analyses of fertilizers, spring season, 1914, Kilgore et al 624 



Analyses of commercial fertilizers, Wessels et al 624 



AGRICULTURAL BOTANY. 



Comparative morphology of some Leguminosse, Martin 624 



A study of the germinating power of seeds, Darsie et al 624 



A physiological study of the germination of Avena fatua, Atwood 624 



Transpiration in relation to growth and distribution of plants, Dachnowski 625 



Water requirement and growth of plants in glycocoU, Dachnowski and Gormley. 625 



The tensile strength of sap, Dixon 626 



Oxidases and their inhibitors in plant tissues, I-III, Atkins 626 



The production of anthocyanins and anthocyanidins, Everest 626 



Relation of cultivated plants to certain soil salts, III, Hansteen Cranner 627 



Effect of calcareous soils on growth and composition of plants, Gile and Ageton. 627 



Quantitative criteria of antagonism, Osterhout 627 



The effect of one crop upon another, Duke of Bedford and Pickering. .... 627 



Spread of morbid changes through plants from branches killed by heat, Dixon. 627 



The effect of city smoke on vegetation, Bakke 628 



Toadstools and mushrooms of the countryside, Step 628 



