n CONTENTS. 



Page. 



Easily extractable phosphorus and phosphorus nutrition, Jakouchkine 805 



The decomposition of tetrathionates in alkaline solution, Cliapin 805 



Report of International Commission for Chemical Soil Analysis, Munich, 1914. . 806 



Potassium permanganate for determination of humus in soils, Grigorieff 806 



The humus of the loess soils of the transition region, Blish 806 



A comparison of methods for the determination of soil phosphorus, Robinson . . 806 



A Limestone tester, Hopkins 806 



Some new methods for the analysis of lime-sulphur solutions, Chapin 806 



Determination of halogens in organic compounds, Drogin and Rosanoff 806 



A method for the estimation of chlorids in cheese, Cornish and Golding 807 



The determination of acidity in potatoes, Hoffmann and Preckel 807 



Analysis of maple products. — V, Miscellaneous observations on sirup, Snell. . . 807 



The determination of small amounts of sugar in luine, Nagasaki 807 



The determination of amino acids in urine, Bang 808 



New indican reaction, Jolles 808 



Nephelometric determination of essential oils. Woodman et al 808 



The utiUzation of cherry by-products, Rabak 808 



SOILS — FERTILIZERS. 



Soil survey of Lee County, Iowa, Da-\is and Sar 809 



Soil survey of Cherokee Coimty, Kans., Wood and Throckmorton 809 



Soil survey of Reno County, Kans., Carter, jr., et al 809 



Soil siu^'ey of Union County, N. C, Derrick and Perkins 810 



Soil survey of Portage County, Oliio, Mooney et al 810 



Analyses of tj-pical soils, Ames 810 



Geo-agronomic study of farm lands in Perugia, Marcarelli 810 



Soils study of the lower Rhine districts, Zimmermann 811 



Successful soil-sampling tools, Shaw 811 



Recent broAvn soil and humus formation in Java and the Malay Peninsula, Lang 811 



Determination of amino acids and nitrates in soils. Potter and Snyder 811 



The amino acid nitrogen of soil, Potter and Snyder 811 



Origin of the "niter spots" in certain western soils, Sackett and L'^ham 811 



Origin of the "niter spots" in certain western soils, Stewart and Peterson 812 



The variation of the fertility and productivity of the soil, Gedroits 813- 



The development of a dj-namic theory of soilfertiUty, Cameron 812 



The difference between rye and wheat soils, Stutzer and Haupt 813 



Influence of soil condition on the bacterial Life, Christensen 813 



Azotobacter in woods and lime requirements, Weis and Bomebxisch 814 



The nonsymbiotic nitrogen-fixing soil bacteria and their importance, DuggeU.. 815 



The fixation of potash by soil bacteria, KjTopoulos 815 



The antizymotic action of salicylic aldchvde and mannite. Skinner 815 



The importance of soil colloids for agricultiu-e and forestry, Rohland 816 



Colloidal clay, Ehrenberg and Given ". 816 



Moisture relations to some Texas soils, Fraps 816 



Absorptive power of soils of Mauritius. De Sornay 816 



The adsorption of potassium Ijy the soil, McCall et al 817 



Absorption of ultraviolet and infra-red rays by soil, Tristan and Michaud 817 



Soil temperatures, Leather 818 



Droughts, rainfall, and soil erosion 818 



The prevention and control of erosion in North Carolina, Baker 819 



Increase of ecological value of light soils by internuxing clay, Schneider 819 



Use of d}Tiamite in improvement of heavy clay soils. Call and Throckmorton. . 820 



The box method of testing manurial requirements of soils, Baylis 820 



Liquid manure T 820 



The nitrogen of sodium nitrate, ammonium sulphate, and liine nitrogen, Ilerke. . 820 



Relative action of nitrogen of lime nitrogen and of sodium nitratc^Gvirfas 820 



Cause of red coloration sometimes observed on decomposing Thomas slag, Ditz. 820 



The pebble phosphates of Florida, Sellards 821 



Possible sources of potash in America, Cameron 821 



Statistical potash fertilizer experiments in 1914, Hoffmann 821 



Importance of fineness to utility of crushed Limestone, Thomas and Froar 821 



The lime magnesia ratio in soil amendments, Thomas and Frcar 821 



The effects of radio-active ores and residues on plant life, Sutton 821 



Influence of radio-active earth on plant growth and crop production, Rusbv ... 822 



Some chemical aspects of the peat probfeni, Morgan ." 822 



Commercial fertihzers, Curtis and Rodes T 822 



