n CONTENTS. 



Page. 



A reaction of succinic and malic acids. De Coninck 414 



Methods for the detection and investigation of trs'ptopro teases, Marras 414 



Distillation of volatile fatty acids and the Reichert-Meissl number, Prescher. . 414 



Catalase and reductase determination in cow's milk, Stetter 414 



The crj'oscope, and several freezing-point determinations, Dekhuizen 414 



Influence of ammonium sulphate on specific rotation of lactose, Rosemaim 415 



On the estimation of fat in feces, Gephart and Csonka 415 



Volumetric method for estimation of total sulphur in urine, Raiziss and Dubin. 415 



SOILS — FERTILIZERS. 



Lake County soils, Hopkins, Mosier, Van Alstine, and Garrett 415 



Improving Iowa's peat and alkali soils, S tevenson and Bro'wn 416 



The radio-active content of certain Minnesota soils, Sanderson 417 



A report on the Piedmont soils, WiUiams et al 417 



Moisture relation of Texas soils, Fraps 417 



Lavas of Hawaii and their relations. Cross 418 



Soil investigations in the Liineburg Heath region, Albert 418 



The vertical soil zones in mountainous Russia, Smirnoff 418 



Chemical composition of allu\'ial soils of the Falcat basin, Eritrea, Maugini 418 



Investigations on usar land in the United Pro\'inces. Leather 419 



Description of soil t^'pes within the "Banjoemas" residency, Java, Houtman. . 419 



Recent soil investigation in the Cape Province. Juritz 419 



The improvement of lands and intensive exploitation of the soil, Catzeflis 420 



A study of some physical properties of soils, Tmka 420 



The adsorptive power of soils, Rohland 420 



On osmosis in soils, L\Tide and Dupre 420 



The consistency cur\'es of mineral soils, Johannsson and Atterberg 420 



Some dxTiamic processes in frozen soils, Nikiforov 421 



Soil analysis. Gimingham 421 



Relation'of chemical composition to soil fertility, Fraps 421 



Alkali in soils, Paterson 421 



Organic matter in soils 421 



On nitrification: Preliminajy observations, Allen and Bonazzi 421 



Action of oligodj-namic elements on the nitrif;}ang bacteria, Montanari 422 



Note on nitrification in the peat soil in the vicinity of Laon, Coquide 422 



Distribution of nitrates in soils with nitrogen fertilizers, Tkachenko 422 



Prevention of loss from manure heaps, Russell and Richards 423 



Purification of sewage by aeration, Bartow and Mohlman 423 



Can sewage sludge be made valuable as a fertilizer? 423 



Analyses of guano, Hutin 424 



Prohibition of collection of guano in the Ballestas Islands, Peru 424 



The preparation of fertilizer from kelp. Tiurentine _. 424 



The utilization of air nitrogen for fertilizing purposes, Krais}- 424 



The cvanamid process. Washburn 424 



The Kalusz kainit. Kolski 424 



Does fertilizing with kainit conserve water? Gerlach and Schikorra 424 



The composition of muds from Columbus Marsh. Nevada, Hicks 425 



The manufacture of fluosilicates and their use. Hutin 425 



Contributions of the chemist to the fertilizer industry, Wallace 425 



AGRICULTURAL BOTANY. 



Nutritional physiology' of higher plants. Graf e -^ 425 



Nutritive exchanges in plants. The role of protoplasm, Maze 425 



The plurality of starches, Tanret 426 



Some recent work on plant oxidases, Atkins 426 



Lipase in the germinating coconut, Roxas 426 



Anatomical coefiicients of maize, size, and nitrogen content, Mostvichev 426 



The effect of detasseUng maize, Heckel - 426 



A biochemical study of nitrogen in certain legumes. Whiting 426 



The protective action of calcium carbonate, Lipman and Burgess 427 



Study of the gas exchange in flowers of Cobsea scandens, Rose 427 



Penetration of \aolet and ultraviolet rays in plant orsrans. Dangeard 427 



The action of Salton Sea water on vegetable tissues. Brannon 427 



The relative action of cold on herbaceous plants, Russell 428 



