n CONTENTS. 



METEOROLOGY. 



Page. 



What the "Weather Bureau is doing in agricultural meteorology, Day 615 



Drought frequency during crop-growing season 615 



Meteorological reports, Georgeson 616 



Australian rainfall, Hunt 616 



The ten-inch line of rainfall, Cherry 616 



Influence of weather on nitric and nitrous acids in rainfall, Anderson 617 



Influence of weather on nitric and nitrous acids in rainfall, Anderson 617 



SOILS — FERTILIZERS. 



Thirty -nine experiments in soils, Quear 617 



Surface formations of northwestern Minnesota, Leverett and Purssell 617 



Fruit soils in the Sierra foothills. Nelson - 618 



Atmosphere of the soil: Its composition and variation, Russell and Appleyard . . 618 



A manometer method of determining the capillary pull of soils. Cannon 618 



Losses of moisture and plant food by percolation, Fraps 619 



Effect of moisture content on nitrogen fixing power, Lipman and Sharp 619 



Effect of organic soil constituents on nitrogen fixation. Reed and Williams 620 



Nitrogen fixation and nitrification in various soil types, Reed and Williams. . . 620 



The organic nitrogen of Hawaiian soils, Kolley and Thompson 621 



Notes on methods for examination of soil protozoa, Martin and Lewin 621 



Studies on soil protozoa, Cunningham 621 



Studies on lime requirements of certain soils, Hutchinson and MacLennan. . . 622 



Probable combination of the chlorin ions in alkali salts, Hare 623 



The effect of arsenite of soda on the soil, McGeorge. . . 623 



The influence of zinc vessels in culture experiments, Ghedroiz 623 



Effect of fertilizers and stimulants on Corchorus capsularis, Albano 624 



Various forms of dung, Gilchrist 624 



Green manuring table, Arndt 624 



German nitrogen monopoly 624 



Lime nitrogen , Kindler 624 



Cyanamid in complete fertilizer mixtures, Pranke 624 



Phosphates in Massachusetts agriculture: Selection and use. Brooks 624 



Phosphoric acid and potash fertilization in the spring, Schneidewind 625 



Potash salts, 1914, Phalen 625 



Radium fertilizer in field tests, Hopkins and Sachs 625 



A municipal fertilizer plant at Los Angeles, California, Heinly 625 



The international movement of fertilizers 626 



Importation of fertilizer materials, Ordonez 626 



AGRICULTURAL BOTANY. 



Measurement of electrical conductivity, Stiles and Jorgensen 626 



A new theory regarding the feeding power of plants, Truog 626 



Inorganic iron compounds in the chloroplasts of the green cells, Moore 627 



Nitrites in plants, Aso and Sekine 627 



Free nitrogen and higher plants, Molliard 627 



Studies on anthocyanin bodies, Gertz 627 



A new method of so-called water culture, II, Hiltner 628 



Antagonism and balanced solutions. True 628 



The osmotic pressure of the juices of desert plants, Harris et al 628 



Relations between osmotic pressure and regulation of stomata, Iljin 628 



The problems in a comparative study of transpiration in plant.=, Iljin 628 



Carbon dioxid concentration and transpiration and development, Kisselew 628 



The effects of high temperatures on leguminous seeds, Neuberger 629 



Death of young plants from heat, Schuster 629 



The action of attenuated acid gases and smoke on plants, Wislicenus 629 



Forest injury from coal smoke, Baltz 629 



Physiological characters of plants, Ivanow 629 



On the nature of mutations, Gates 630 



Induced variations in chromogenesis, Smirnow 630 



Influence of concentration of nutrient substrate on micro-organisms, Northrup. 630 



Halophytic and lime-precipitating bacteria, Kellerman and Smith 630 



Bacteria of the colon type occurring on grains, Rogers et al 631 



Chondriosomes and their significance, Cavers 631 



