II CONTENTS. [Vol. 41 



Paga 



The temperature of solution of butter fat in various reagents, Johnston 805 



Hj'drogenation of peanut oil, Heini, Job, and Sturzwage 805 



Kaolin for tannin analyses, Frey 805 



Conference on production and consumption of sugar in British Eniijire 80G 



The paper making qualities of Hawaiian bagasse. Little, Inc 80G 



Unfermented grape juice: How to make it in the home, Bearing • 80(5 



Culture of cabbage for sauerkraut, Lebrun 807 



Low temperature-vacuum food dehydration, Falk et al 807 



Work of Harriman Research Laboratory, Koosevelt Hospital, Falk 807 



METEOROLOGY. 



Smithsonian meteorological tables SOS 



Climatological data for the United States by sections SOS 



Meterological observations at INIassachusetts Station, Ostrander and Smith_ 808 



Climatic factors [at the Hettinger substation, N. Dak.], Ogaard 809 



The weather of the past agricultural year, Brodie 809 



Swedish meteorological observations 809 



Warm season droughts 809 



Average summer rainfall 809 



Weather and corn, 1919 ^ 810 



Weather and winter wheat, 1918-19 810 



Everyday mistakes about the weather, Talman 810 



SOILS FERTILIZERS. 



Soil samples, maps, and profiles, van Bijlert 810 



Soil survey of IMercer County, Pa., Deeter et al 810 



Soil analysis, Harlow 811 



Black soils, Harlow 811 



Further studies on the soils of North Wales, Robinson and Hill 811 



Biological analysis of soils, Padmanabha Aiyer 811 



Cultures of bacteria on sterilized soil, Barthel 812 



Nitrification in Egyptian soils, Prescott 812 



Relationship between contraction and the percentage of colloidal clay 812 



The influence of stones in soil on the growth of plants, Pfeiffer et al 813 



Soils and manures 813 



Sand hill land : Tillage, fertilizer, and crop adaptation. Smith and Camp 813 



Influence of kind of soil and fertilization on crops, Maschhaupt 813 



Manures in their relation to soils and crop production, Clouston 813 



Soil deficiencies in India, with special reference to indigo, Armstrong 814 



Fertlizers, McDonald 814 



Peat and its utilization, de Montgolfier 814 



Experiments Avith night soil as manure, Patil 814 



The pre.ssing of sewage sludge, Allen 814 



Commercial oxidation of ammonia to nitric acid. Parsons 815 



Physiological action of ammonium salts on plants, II, Soderbaum 815 



An afterwar fertilizer, ammonium nitrate, Malpeaux 815 



Influence of dicyandiamid on plant growth, Johnson 815 



Availal)ility of nitrogenous manures in cotton soil, Plymen and Bal 816 



The value of phosphate manures in India, Davis S16 



Phosphate rock in 1918, Slone 817 



Triplite: A possible source of phosphoric acid, Zealley 817 



On the manner of occurrence of potassium nitrate in Oregon, Nattress 817 



Separation of potash salts, Bassett 818 



Potash production in Russia 818 



Limestone action on acid soils, Sewart and AVyatt 818 



AGRICVLTURAL BOTANY. 



Plant physiology, Knight 818 



Plant physiology, Blackman 818 



Plasmolysis of epidermal cells in petals of tulip, Guilliermond 818 



The activation of buds in the Compositte, Bohn 818 



Bud formation of plant hypocotyls, Clark 818 



Artificial absorption of glucose by the mulberry tree. Acqua 818 



