n CONTENTS. tVol- 43 



Page. 



Preservation of fruits and vegetables for home use, Macfarlane 316 



Processing and canning of ripe olives, Cruess 316 



Sonu- hacteriologiciil aspects of dehydration, I'rescott 316 



Practical leather chemistry, Harvey 317 



Grasses of Eastern Coast Belt available for manufacture of paper, Juritz- 317 



METEOROLOGY. 



Report of the chief of the Weather Bureau, 1919 318 



Meteorological summaries 318 



Climatic conditions Ion the Yuma Reclamation Project, 1918], Blair 318 



Method of constructing a diagram to show probable droughts, Tchlkoff 319 



Utiliz:ition of cirrus clouds in weather forecasting, Reboul and L)unoyer_ 319 



Tropical control of Australian rainfall, Quayle 319 



The value of weather records in fumigation, Waglum . 319 



SOILS FEETLLIZEBS. 



Soil .studies -. 319 



The east German black soils (chernozem), Hohenstein 320 



Studies of red soils of " djati " forests, Beumee-Nieuwland 320 



The physical properties of soils. Keen 320 



The soil viewed as a permanent depositary of moi.sture, Fontana 320 



Effect of initial moisture content on moisture movement, Roberts 320 



The daily march of temperature in the surface layer of the soil, Siiring— 321 



Temperature of springs and of the soil 321 



The value of lupines in the cultivation of poor light land, Oldershaw 321 



Legume inoculation, Swingle and Nutting 321 



Carbon dioxid and plant growth, Bornemann 321 



Humin acids, Marcusson 321 



The farmer's part in bigger crops, Trullinger 321 



Fertility program for a 160-acre farm, Thorne 321 



Soil fertility experiments 322 



Facts concerning meadow fertility, Bachtell ^_ 322 



Nitrogen, phosphoric acid, and potash contents ot oats, Pfeiffer et al 322 



Explanation of nitrogen loss In liquid manure, Blanck 323 



Does peat litter absorb water from damp air? Tacke 328 



Theoretical study of nitrogen fixation by electric arc, i-IV, Steinmetz 323 



Political control of nitrogen resources of the world, I-III, Gilbert 323 



Plant ashes as a source of potash 324^ 



Basic slag v. acid phosphate, Thome 324 



Basic slag v. acid phosphate, Thorne 324 



Sulphur in plants and soils. Peter 324 



The question of lime fertilization, Liechti and Truninger 825 



Action of lime on acid humiferous soil, Oden 325 



Relation of pulverized limestone to crop production. Burgess 325 



Borax in fertilizers, Conner and Fergus 325 



Analyses of fertilizers, ground bone, and lime, Cathcart et al 326 



The Connecticut fertilizer law 326 



Fertilizer analyses. Patten et al 326 



Registered brands of fertilizers and lime, Kellogg 826 



AGEICt'LTXIBAL BOTANT. » 



Plant succession and plant distribution in South Africa, Bews 326 



The effect of the frosts of the winter of 1916-17 on vegetation, Bowles___ 326 



The effect of aeration on the roots of Zca mays, I, Beals 327 



The action of one crop on another, Pickering 327 



The effect of centrifugal force on plants, Andrews 327 



Barium in plants and soils 327 



Abnormal abundance of calcium oxalate in plants, Patschovsky 327 



Localization of anthocyanin in the spring leaves in Japan, Ichiraura 327 



New chromogen, producing blue pigment in Galanthus nivalis, Tammes 827 



The opening of anthers in Solanaceae, Namikawa 327 



Studies on pollen, Andrews 328 



Pollen development in Cinnamomum, Tackholm and Soderberg 328 



