n OONTENTS. [Vol.36 



Page. 



Ancient Irish oak, Richards 804 



Photomicrographs of crystallizable chemical salts, Doubleday 804 



Some laboratory conveniencea, Perkins 805 



Carbon dioxid absorption apparatus. Wesson 805 



Apparatus for the recovery of bromin, Collings 805 



Note on the recovery of molybdic acid, Rudnick and Cooke 805 



Notes in regard to titration of sulphuric acid, Gyzander 805 



Handling a standard Solution of barium hydrate, HajTies 805 



The use of the Cottrell precipitator in treating phosphate rock, Ross et al 806 



The determination of total phosphorus in bone ash, Pilz 806 



A colorimetric method for COg in air, HigginS and Marriott 806 



The determination of small amounts of arsenic, Beck and Merres 806 



New procedure for methyl alcohol in presence of ethyl alcohol, Reif 806 



The determination of raffinose in the presence of sucrose, Pellet 806 



Estimation of pentose or pentosans by Fehling's solution, Baker and Hulton. . 807 



Determination of sugar in hay and turnips, Kiistensen 807 



The determination of fat in cacao products, Lange 807 



The alcohol test in milk, Kolthoff 807 



The detection of added water in milk, Durand ._ 807 



Action of various animal charcoals on pure and irnpure sugar solutions. Pellet. . 807 



The occurrence and determination of citric acid in wine, Wohack 808 



Identification of lactic acid in biological products, Phelps and Palmer. 808 



Turbidity in beverages containing maltose and glucose, Homberger and Marvel . 808 



The concentration of lime juice by freezing 808 



The utilization of olive pomace, Cruess and Christie 809 



Utilization of Imperata cylindrica in the paper industry, Vignolo-Lutati 809 



Removal of barium from brines in salt manufacture, Skinner and Baughman. 809 



The theory of drying and its application to the new dry kiln, Tiemann 809 



METEOROLOGY. 



Climatic conditions in Maryland, as related to plant growth, McLean 809 



Weather forecasting. Bliss 811 



Weather observations, Farley 811 



[British rainfall in 1916] Mill 811 



Results of rainfall observations in New South Wales, 1909-1914, Hunt et al. . . 811 



SOILS — FERTILIZERS. 



Analyses of boils of Jones County, Worsham, jr. , et al. . . ." 812 



Soil survey of White County, Indiana, Bushnell and End 812 



Soil survey of Newton County, Missouri, Sweet et al 812 



Soil survey of Alleghany County, North Carolina, Burke and Lambert 813 



Soil survey of Hampton County, South Carolina, Beck and Goodman 813 



[Soil studies at the Wisconsin Station] 813 



[Soils] Burgess 813 



Combinations of soils in plain and mountainous regions, Neustruev 813 



Separation of oxids of iron and aluminum in soils of Finland, Aamio 813 



Ferrification in soils. Brown and Corson 813 



Contributions to our knowledge of soil fertility, XII-XIV, Greig-Smith 814 



The organic matter of the soil, II, Gortner 815 



Influence of A^arious cations on absorption of ammonium ion by soil, Miyake. . 816 



Effect of irrigation water and manure on the soil, Harris and Butt 816 



Influence of bacteria in manure on green manm-e, Lipman and Blair 817 



Farm manures. Dustman 817 



Report on the fertilizer industry, August 19, 1916 817 



Observations on the availability^ of nitrogen in fertilizers, Lipman 818 



The availability of nitrogenous materials, Lipman and Blair 818 



Nitrogen utilization in field and cylinder experiments, Lipman and Blair 819 



Lime as a factor in the utilization of nitrogen, Lipman and Blair 819 



Banana stalks as a source of potash, Billings and Christie 820 



Production of potash in 1916 820 



Vegetation experiments: Basic slag v. other phosphates, Lipman and Blair 820 



Relative availability of acid phosphate and raw rock phosphate, Conner 820 



Raw phosphate/ock as a fertilizer, Thome 820 



Sulphur oxidation in soils and its effect on mineral phosphates, Lipman et al . . 821 



The actioii of calcium carbonate on acid phosphate, Magi-uder 821 



