n CONTENTS. 



Pago. 



Enzym reactions for differentiating boiled from raw milk, Gr5ger 506 



Are alkalinity and peroxidase synonymous? Kooper 507 



In regard to the guaiac test, Schern and Schelihase 507 



Source of error in the determination of the Polenske number, Arnold 507 



A new method for determining sugar, Bang 507 



The Andrlik urea method of polarization for cane products. Cross and Taggart. . 508 



Determination of sucrose in cane molasses, Ogilvie 508 



[Report of the chemists], Vinson and Ross 508 



Commercial methods of canning meat, McBryde 508 



How to pack hominy free from black discoloration, souring, or starch hydrolysis . 508 



METE OROLOGY — WATER . 



How about the weather? Schmucker 509 



The moon and the weather in 1912, Hinselmann 509 



Influence of reservoirs on climate 509 



A contribution to the sums of temperature in phenology, Hegyfoky 509 



Report of the Chief of the Weather Bureau, 1910-11 509 



Meteorological observations at the Massachusetts Station, Ostrander et al 510 



Report on weather forecasts, 1911, Gilchrist 510 



The weather of 1911, Gilchi-ist 510 



Variations in our climate, MacDowall 510 



The drought of 1911, Kershaw .^ 510 



The average annual distribution of rainfall in Hungary, 1901-10, Hejds 510 



Character of the summer rains of North Germany, Hellmann 510 



Snow limits in different climates, Paschinger 510 



The value of snow surveys as related to irrigation projects, Thiessen 510 



The winds of the United States and their economic uses. Day 511 



Subsoil water of central United States, McGee 511 



On the transport of mud by a river in flood, Steel 511 



Experiments on the removal of manganese from gi'ound water, Thiesing 511 



Influence of the hardness of water on its suitability for drinking piu'poses 511 



The hygienic value of soft water 512 



Disinfection of drinking water with chlorid of lime, Grimm 512 



Wholesome water in the country, Billings 512 



Sewage disposal in rural districts. Rod well 512 ^ 



Sewage treatment. — Advantages of land over artificial schemes, Manley 512 



Sewage and the farmer, Sedgwick 512 



SOILS — FERTILIZERS. 



Important American soils, Bonesteel - - 512 



New Jersey soils in their relation to fertility and crop production, Lipman.. 513 



Geological maps before the German Agricultural Council, Jentzsch 513 



Constitution of concretions in red soils of northern Italy, Blanck 513 



Chemical and physical nature of red soils, Blanck 513 



The origin of sea marshes, Schiitte 513 



Analyses of soils of Gennan Southwest Africa, Grimme 513 



Pumice soils, Aston 513 



Rock and soil in relation to plant nutrition, Blanck 513 



Acid excretion of roots and the solubility of plant food, Pfeiffer and Blanck. . 514 



Action of different solvents on the plant-food constituents, Engels .-•-.-•- ^^^ 



Value of plant constituents as dependent on solubility, Maschhaupt and Sinnige. 515 



Remarks on absorptive saturated and unsaturated soils, Rindell 515 



Relation of evaporation to water content of soil at wilting, Brown 515 



Salt content of drainage waters of the polders of North Netherlands, Berkhout. 515 



Influence on soil temperature of additions of sand to moor soils, von Feilitzen . 516 



Soil bacteriology in agi'iculture, Lipman 516 



Relation of soil bacteria to evaporation, Hoffmann 516 



The nitrogen cycle in the soil, Russell 517 



Nitrifying and ammonifying powers of North Carolina soils, Stevens et al. .. 517 



Investigations on nitrogen fixation of Azotobacter chroococcum, Rosing 517 



The influence of stall manure upon the bacterial flora of the soil, Temple 518 



Earthworms and the fertility of the soil, Beaug^ 518 



elaintenance of soil fertility in China, Korea, and Japan], King 518 



ow may fertilizer experiments bo improved? De Jong 519 



