n CONTENTS. 



Page. 



An improved Hollemann method for estimating phosphoric acid, Vitoria 110 



Neutral ammonium citrate solutions, Patten and Robinson 110 



Use of "nitron" for determination of nitrate nitrogen, Robinson and Winter. . 110 



Determining hygroecopicity by Rodewald-Mitscherlich method, von Romberg. 110 



Determining the mineral substances in water and estimating hardness, Wunder . Ill 



Detecting and estimating nitrites and nitrates in water, Tillmans and Sutthoff . . Ill 



A rapid preliminary test for detecting added water to milk, Tillmans Ill 



The determination of saccharose and detection of dextrin, Vollant Ill 



Constants of chicken and turkey fats, Ross and Race Ill 



Determination of gliadin and alcohol-soluble protein in wheat flour, Hoagland . Ill 



The testing of the quality of gliadin in flour, Apsit and Brocq-Rousseu 112 



In regard to the acids in honey, Heiduschka 112 



The differentiation of almonds from similar seeds, Hannig 112 



Determination of malic acid, Dunbar and Bacon 112 



The immersion refractometer for approximating the solids in vinegar, Remington 112 



A method for the detection of small quantities of coumai'in, Wicbmann 112 



The estimation of furfurol by means of Fehling's solution, Eynon and Lane 113 



Examination of certain milk testing apparatus, Tiemann ] 13 



The determination of the acidity of milk, Rammstedt 113 



Methods for fat most frequently used in milk chemistry, von Sobbe 113 



Do volatile fatty acids occur in fresh whole milk? Koo])er 113 



A simple method for detecting butter prepared from heated cream, Hesse 114 



Examination of crude and refined milk sugar, Burr and Berberich 114 



The electrical conductivity of impure sugar solutions, Taegener 114 



The unification of reducing sugar methocis. — A correction, Walker 114 



A measurement of the translucency of papers, Sammet 114 



Change in the acid content of distilled vinegar stored in wooden casks, Behre. . 114 



Milk sugar, Burr and Berberich 114 



The oil of Douglas fir; its composition and properties, Benson and Darrin 115 



METEOROLOGY — WATER. 



A new service of agricultural meteorology in France, Klein 115 



Monthly Weather Review 115 



Meteorological observations. Patten and Seeley 115 



The climate of Prince George's County, Alexander 116 



( 'Old air drainage, Shreve 116 



The relation between the amount of rainfall and of seepage, Luedecke 116 



Water resources of the Penobscot River basin, Maine, Barrows and Babb 116 



Surface water of south Atlantic coast and Gulf of Mexico, Hall and Mathers. . . 116 



Surface water of Hudson Bay and Upper Mississippi basins, Follansbee et al. . 116 



Gaging stations maintained by U. S. Geological Survey ] 888-1910, Wood 116 



Artesian and subartesian waters. New South Wales, Mingaye and \Miite 116 



SOILS — FERTILIZERS. 



The soil formino; processes and principles of soil classification, Kossovich 117 



Soils of arid and of humid regions, Hilgard 117 



Soil investigations in the United States, Henning , 117 



A contribution to the knowledge of Cuban cultivated st)il8, MuUer 117 



Soil investigations, Kelley 118 



Origin, composition, and properties of manganiferous soils of Oahu, Kelley 118 



Modification of the method of mechanical soil analysis, Fletcher and Bryan.. . 119 



The estimation of certain physical properties of soil, Auchinleck 120 



Hygroscopicity and the value of physical analyses, Mitscherlicli and Floess 120 



The drying of soils, Ritter 121 



The oxygen content of soil water and its influence, Hesselman 121 



Evaporation from irrigated soils, Fortier and Beckett 121 



Effect of heat and oxidation on the phosphorus of the soil, Peterson 122 



Determining the intensity of respiration of bacteria in the soil, Stoklasa 122 



Toxic effects of "alkali salts" on soil bacteria. — II, Nitrification, Lipman 124 



Maintenance of soil fertility: Plans and summary tables 124 



Reaction changes in the soil by gro^vth of plants and fertilizing, Maschhaupt. . 124 



Influence of phosphatic and potassic fertilizers on pastures, Chavan 125 



After effect or fertilizing with potash rocks on moor soils, von P^eiltizen 125 



Experiments on kainit, potash salt, and phonolite, Schneidewind et al , . .125 



