II CONTENTS. [Vol. 37 



Page. 



Experimental investigations of the plum, 1 1 , Feruglio and Bernardis 410 



Tobacco seed oil, Cohen 411 



The oleoresin of Douglas fir, Schorger 411 



The oxidase of Rhus diversiloba, McNair 411 



Achroodextrinase, Effront 411 



The chemical nature of the vitamins, III, Williams 411 



Titration of magnesium, Bruckmiller 412 



A study of the volimietric or Pemberton method for phosphoric acid, Shuey 412 



Determination of ammonium sulphate, Schouten-Ilcken and Tuinzing 412 



Determination of nitrogen in lime nitrogen, Berkhout et al 413 



The Duclaux method for estimation of volatile fatty acids, Upson et al 413 



A note on the Duclaux method for volatile fatty acids, Lamb 413 



The Duclaux method, Boekhout and De Vries 414 



The systematic extraction of aqueous solutions with ether, Pinnow 414 



Determination of added water m meats and sausages, Baumann and Grossfeld . . 414 



The alkaUnJty of cocoa, Arpin 414 



The determination of the alkalinity of cocoa, Rocques 414 



Moisture determination in spices and similar products, Scholl and Strohecker. . 414 



Determination of ammonia in wine and its significance, Baragiola and Godet. . . 414 



The determination of ammonia in wine, Baragiola and Schuppli 415 



A method for the examination of methyl saUcvlate, Albright 415 



A study of certain ferments. — I, Reductases, Lee and Mellon 415 



Characteristic milk powder forms, Griebel 415 



The method for the determination of fat in cheese, Brodrick-Pittard 416 



The microscopic examination of colza and rape seed cake, Ezendam 416 



The chemical examination of rape seed press cake, van Kampen 416 



Cider and the cider industrv in England, Warcollier et al 416 



Washing- fruits and vegetables, Bitting 416 



Beet molasses: Its composition and utilization, Osborn 416 



Preparation of acid coagulants, and their effect on rubber, Eaton and Whitby. 416 



Notes on the rubber from Eucommia uhiuridn, Sievers '. 417 



The artificial drying of tobacco, De Vries 417 



METEOROLOGY. 



A new system of weather prediction, Paresce 417 



Normal anomalies of the mean annual temperature variation, Arctowski 417 



Effect of short period variations of sfilar radiation on atmosphere, Claj-ton 417 



The influence of intense and prolonged cannonading on rainfall, Deslandres. . . 418 



Does violent cannonading induce rainfall? Sebert 418 



Influence of climatic conditions on composition of plant oils, Pigulevski 418 



The past ^vinter, Harding 418 



SOILS — FERTILIZERS. 



Soil moisture and plant succession, Fuller 418 



Evaporation and soil moisture in forests and cultivated fields, Groves 418 



Tobacco soils and the tobaccos e^own thereon. Cohen 419 



Soil survey of Cowley County, Kansas, Hall and Tillman 419 



Mecklenburg County soils, agriculture, and industries, Williams et al 419 



Lime requirements of some acid soils, Conner 420 



Study of soil containing residual limestone, Noyes 420 



Character of soils in area devastated by Soufri^re of St. Vincent. Tempany 420 



The "gall patches' ' in Antigua soils, Tempany 421 



Sterilization and fatigue of soil 421 



Influence of crop, season, and water on bacterial activities. Greaves et al 421 



The behavior of legume bacteria in acid and alkaline media, Salter 422 



Effect of decomposing organic matter on certain constituents of soil. .Jensen .... 422 



Conversion of soluble into insoluble phosphoric acid in the soil, Skalkij 423 



The gases of swamp rice soils, IV, Harrison and Sul:)ramania Aiyer 424 



Maintaining the nitrogen supply of the soil, Blair 425 



Fertilizers and increased production, Shutt 425 



Is the recovery of the nitrogen in sewage sludge practicable? Copeland 425 



Report on humogen, Russell 426 



Grape cake as a fertilizer, Roos 426 



Comparison of four nitrogenous materials, Bonomi and Margreth 426 



