n CONTENTS. [Vol. 37 



Page. 



Nature of the reducing substances precipitated by lead subacetate, Pellet 13 



Notes upon oil testing, Gill 13 



Color tests for oils. — Palm otl, Gill 13 



New method of steam difitillation for volatile fatty acids, Dyer 13 



t Examination of lulu kernels and lulu oil (shea butter) from Uganda] 14 



Estimating general turbidity of fluid suspensions, Dreyer and Gardner. ... 14 



The estimation of amino-acid nitrogen in blood. Bock." 14 



Concentration and rotatory power of solutions of nicotin. Tingle and Ferguson. 14 



New method for determination of nicotin in tobacco, Tingle and Ferguson 14 



Sirups for canning and preserving, McNair 15 



The manufacture of apple jelly, Truelle 15 



METEOROLOGY. 



The quantitative study of climatic factors in relation to plant hie, Adams 15 



World-wide changes of temperature. Brooks 15 



Improved methods in hygrometry, Shaw 16 



Department of meteorology 16 



^Meteorological summary]. 16 



New England snowfall. Brooks 16 



Meteorology, Flammarion 16 



Climatology of 1915, Flammarion 16 



The rainfall of Java, WalHs 16 



SOILS — FERTILIZERS. 



Biological changes in soil during storage, Allison 17 



A method for determining volume weight of soils in field condition, Shaw 18 



Soil valuation and soil investigation, Remy 18 



The capacity of the soil to absorb and hold water, Rindell 18 



DjTiamics of soluble phosphoric acid in the soil 18 



Solubility of manganese compounds in the soil, Masoni 18 



Soil bacteriology, Hutchinson 19 



Studies of north Idaho soils, Putnam 20 



Organic matter of the soil. — III. Production of humus from manures, Gortner. 20 



The loess soils of Nebraska portion of transition region, VI, Alway et al 20 



Soil survey of Latah County, Idaho, Agee et al 21 



Soil survey of Wells County, Indiana, Tharp and Wilev 21 



Soil survey of White County [Indiana], Busnnell and £mi 21 



Soil siu"vey of Van Buren County, Iowa, Lounsbury and Reid 21 



Soil survey of Washington County, Nebraska, Da\is and Mortlock 22 



Soil survey of Da\ddson County, North Carolina, Hardison and Brinkley 22 



Soil survey of Lewis and Gilmer Counties, West Virginia, Latimer 22 



Arable soils, Charron 22 



Stable manure, Temple 23 



Absorption and wasliine out of nitrogen from nitrates, van Harreveld-Lako 23 



Lime nitrogen as a fertilizer, Milo 23 



Residual effect of phosphatic manures on green crops 23 



Influence of fertilizers and soil amendments on acidity. Skinner and Beattie . . 23 



The rotary kiln for lime burning — descriptive and comparative, Jones 24 



Soil acidity and the liming of Iowa soils. Brown 24 



Fertilizer analyses, McDonnell 24 



AGRICULTURAL BOTANY. 



The progressive development of the wheat kernel 24 



Translocation of protein reserves in com seedling, Pettibone and Kennedy 24 



Relation of amid nitrogen to nitrogen metaboUsm of pea , Sure and Tottingham . 24 



Release of oxygen dunng reduction of nitrates in green plants, MolUard 25 



Cytological formation of anthocyanin in living plants, Mirande 25 



Selective permeability: Absorption by Eordeum vnlgare, Brown and Tinker. . . 25 



Some photochemical experiments with pure chlorophyll, Jorgensen and Kidd . 26 



Aeriferous tissue in willow galls, Cosens and Sinclair. 26 



Determining the transpiring power of plant surfaces, Livingston and Shreve. . 26 



GerminabiUty tests with seeds of Lepimum sativnm , Lesa^e 26 



Influence of medium on orientation of secondary* terrestrial roots, Ho i man 27 



