n CONTENTS. [Vol. 43 



Page. 



Correction for volume of precipitate in determination of lactose, Perkins- 805 



lodometrie method for reduciiif;' siijiurs, Van rs'ouhui.js 806 



A picnometer for the determination of density of molasses, Newlsirk 800 



Factors determining the keeping quality of cane sugar, Kopeloff 807 



[Cider investigations], Grove 807 



Home canning and food thrift, Benson 80S 



Preserving fish in the home, Lewis 808 



A new and successful type of fruit evaporator, Cruess SOS 



Palm gul manufacture in the Bombay Presidency, Gokhale 808 



Commercial possibiUties of sun drying vegetables in Baluchistan, Howard- 808 



Technique of potato starch manufacture, Moore 808 



A practical study of corncob utilization, La Forge 809 



METEOROLOGY. 



Evidence of climatic effects in the annual rings of trees, Douglass 809 



Solar variation and the weather, Abbot ^ 809 



Temperature variations in Nortli Atlantic, Helland-Hansen and Nansen— 810 



Meteorological influences of the sun and the Atlantic, Gregory 810 



The world's rainfall 810 



Climatological data for the United States by sections 810 



Meteorological summaries 810 



Weather [at the North Central Minnesota Substation], Bergh 811 



The climate of The Netherlands : Air temperature, Hartman 811 



[Meteorology in South Australia], Johnston 811 



SOILS FEKTILIZEKS. 



Soil survey of Pulaski County, Ga., Meyer 811 



Soil survey of Horry County, S. C, Tillman et al 812 



A study of moisture movement in the soil 812 



Capillary transmission constant and methods of determining it, Gardner. 812 



Hygroscopicity and hydrologic importance of moss, Piccioli 812 



The carbon dioxid of the soil air, Turpin 812 



Organic phosphorus content of Ohio soils, SehoUenberger 813 



Deficiency of plant-food calcium in soils 814 



Unreliable methods of determining toxicity of alkali salts, Headley 81-1 



The management of Palouse soils, Peterson 814 



Agricultural value and reclamation of Minnesota peat soils. Alway 814 



The best methods of laying down and improving grass land, Gilchrist 814 



Soil fertility 814 



Soil fertility Investigations, Bergh 814 



Manure v. commercial fertilizers for Maryland soils, McCall 815 



Plant growth-promoting substances in manurial composts, Mockeridge 815 



The catalytic oxidation of ammonia to nitric acid, Neumann and Rose 816 



Acid phosphate and rock phosphate on North Carolina soils, Williams et al_ 816 



The value of raw phosphate in agriculture, Knieriem 817 



Preliminary potash exploration in New Jersey greensands, Mansfield 817 



The fertilizer situation, Whitney 817 



1920 yearbook of commercial fertilizer -- 817 



Official fertilizer analyses, 1920, Rose and Hart 817 



Commercial fertilizers, Proulx et al 818 



Analyses of fertilizers — spring season, 1920, Plummer 818 



AGRICULTURAL BOTANY. 



General botany, Densmore 818 



New methods and aims of botanical systematization, Thellung 818 



Stability and heredity of Cratjegomespilus and Pirocydonia, Daniel 818 



Survey of (Enothera problems, Kooiman 818 



The CEnotheras as nuclear chimeras, Lotsy et al 818 



Anomalous papayas and digitiform oranges, Bernard 818 



Heredity studies with beans, Tjebbes and Kooiman 818 



Recent methods of phylogenetic plant anatomy, Nienburg 818 



Studies in electrophysiology, Baines 819 



Physiological studies on tree architectonics, Lundegfirdh 819 



