CONTENTS. Ill 



SOILS — FERTILIZERS. 



Page. 



Changes in the loess soils of Nebraska caused by cultivation, Alway 422 



Soils of Pender County, North Carolina: A. preliminary report, Bennett 423 



Contribution to the study of Bolognese soils, Costanzini 423 



The dynamic viewpoint of soils, Cameron 423 



The soil considered as a reserve food supply, Maizieres 424 



Availability of the soil potash in clay and clay loam soils, Morse and Curry.. 424 



On the fertility of soils with regard to phosphoric acid, Kostzyeletzkii 424 



The thermal effect of moistening the soil, Miintz and Gaudechon 425 



The evolution of heat when dry soil is moistened, Miintz and Gaudechon 42.5 



Irrigation investigations: Evaporation and transpiration, Widtsoe 425 



Methods of bacteriological investigation of soils, V, Lohnis 426 



Convenient solid substrata for the culture of nitrifying organisms, Makrinov. 427 



Studies in soil bacteriology, III, Stevens, Withers et al 427 



Nitrogen assimilating micro-organisms, Apelt 427 



Azotobader chroororciim, its properties and activity in soil, Krainskii 427 



Fixation of atmospheric nitrogen by Azotobacter in pure culture, Beijerinck. 427 



Bacteriological examinatii >n of nitro-bacterine, Grandeau 427 



Soil inoculation experiments with nitragin and nitro-bacterine, Grabner 428 



The increase of nitrogen in soils by means of free living bacteria, Koch 428 



Action of moor soils as fertilizer with special reference to nitrogen, Herrmann. 428 



On tiie present status of the Sw^edish peat industry, Wailgren 429 



Green manuring on the better soils, Schneidewind 429 



Asking questions of the soil, Haughton 429 



The soil invoice, Pettit 429 



Experiments on the influence of manure on black soil, Buichikhina 429 



Production and commerce in manure in Paris, Olry 429 



How is the deficiency of stable manure to be made up? Pohl-Rohrbeck 430 



Growth of commercial fertilizers, Scovell 430 



Plain talks on the use of fertilizers, Voorhees 430 



Practicable fertilization. Hills 430 



The manufacture of chemical fertilizers, Fritsch 430 



Fertilizer mixtures, Morse 430 



The nitrate of soda position 430 



The nitrate fields of Chile.— Origin, production, and uses of nitrate of soda... 430 



[A new atmospheric nitrogen fertilizer] 431 



New fertilizer materials, Johnson 431 



Artificial nitrates [in Norway] 431 



Norwegian nitrate, Ulrich 431 



The new nitrogenous fertilizers in comparison with the old, Jacometti 431 



Laming's mixture, or crude ammonia, forfertilizingoras an antiseptic, Cavazza. 431 



On the fertilizer value of so-called nitrammon-lime (poudrette), Soderbaum. . 432 



A better method of use of nitrate of soda, Decaux 482 



Assimilation of potash and nitrogen by beets after fertilizing, Stutzer 432 



The occurrence of ammonia and nitrate in deposits of potash salts, Biltz 432 



A new potash fertilizer, Haumont 432 



Will potash be cheaper ? 432 



Relation of phosphorus to permanent American agriculture, Whitchurch 433 



Acid phosphate, James 433 



The use of fertilizer lime, Thatcher 433 



The influence of lime and magnesia on plants, Bernardini and Siniscalchi 433 



On the various correlations between lime and magnesia, Konovalov 433 



Manganese fertilizers, Rousset 433 



The fertilizing action of the crystalline residue of tobacco, Caruso 434 



Bat guano in Burma, Thompstone 434 



Sawdust for use as litter, Kinch 434 



Report of analyses of commercial fertilizers and Paris green, Halligan 434 



Report of analyses of samples of fertilizers collected during 1909 434 



Analyses of commercial fertilizers, Hartwell et al 434 



AGRICULTUKAL BOTANY. 



The fixation of bud mutation of Solanum maglia, Heckel 434 



A recent example of mutation in Solanum commersonil, Planchon 435 



The origin of the cultivated potato, Wittraack 435 



The ferments and latent life of resting seeds. White 435 



