CONTENTS. in 



Page. 



The fertilizing action of sulphur, Degrully 422 



Sulphur as a fertilizer 422 



Sand and ashes from Vesuvius, Casoria 422 



Artificial manures in Hungary, De Miklos de Miklosv^r 422 



The consumption of chemical and mineral fertilizers in Spain, Gallego 423 



Analyses of commercial fertilizers in Mississippi, 1911-12, Hand et al 423 



Analyses of fertilizers, sprin" season, 1912, Kilgore et al 423 



The inspection of cotton-seed meal, season 1911-12, Hand et al 423 



The mixing of fertilizers, Vecchi 423 



Home mixmg and general fertilizer formulas 423 



AGRICULTURAL BOTANY. 



Practical botany, Bergen and Caldwell 423 



A laboratory manual of general agricultural bacteriology, Hastings et al 423 



A biologic and taxonomic study of the genus Gymnosporangium, Kern 424 



Natural history, etc. , of Azolobacler chroococcum, Prazmowski 424 



The physiology of denitrifying bacteria, von Caron 424 



Metabolism and translocation in young foliage trees, Bauer 425 



The periodicity of nutritive processes in young beeches, Kiibler 425 



The periodicity of synthetic processes in young foliage trees, Bauer 425 



Influence of atmospheric oxygen on proteolytic ferments, Palladin and Kraule. 426 



Significance of respiration pigments m oxidation processes of plants, Palladin. 426 



Influence of diastase and emulsin on the respiration of plants, L'vov 426 



Relation of protoplasmic-streaming movements to starch grains, Heilbronn... 426 



The carbohydrabes of the snowdrop leaf, Parkin 427 



Origin and function of pentosans in plants, Ravenna, Cereser, and Montanari. 427 



Significance of mucilage in the germination of seeds, Ravenna and Zamorani. 427 



Dimorphism of chlorophyll grains in some plants, Giovannozzi 427 



Remarks on a new method of studying stoma tal aperture of stomata. Stein 427 



Heterozygosis in evolution and in plant breeding, East and Hayes 428 



Inheritance of red color, and self-fertilization in jute, Finlow and Burkill 428 



Department of botanical research, MacDougal 428 



FIELD CROPS. 



Water requirements of crops in India. II, Leather 429 



[Dry farming soil preparation methods], Richardson 429 



[Field crops at the Delta substation, 1911], Walker 429 



[Cabbage and potatoes at the New Mexico Station], Garcia 430 



Results of cooperative experimental work for 1911, Tarbox, jr 430 



Tables of field crops. Harper 430 



Competition in cereals, Montgomery 430 



The manuring of grass land 431 



The grasses and grass-like plants of New Mexico, Woo ton and Standley 431 



Studies in Indian fiber plants, Howard 431 



Peruvian alfalfa, Opazo 431 



Lucem 431 



Tests of treated and untreated beet seed, Giinther 431 



Germination tests of the different colored seeds of red clover, Kajanus 431 



Native seed com, Montgomery 432 



Studies in water requirements of com, Montgomery and Kiesselbach 432 



The "Williamson Plan " of com culture 433 



Cotton in Hawaii, McClelland and Sahr 433 



Recent cotton experiments 433 



Note on the present position of cotton investigation in India, Coventry 434 



[Flax experiments in India], Vandekerkhove 435 



Ragged Jack kale 435 



Black oats, McDonald et al 435 



Fertilizers and the growth of rice, Zamora 435 



Correlation in rye, Lehn 435 



Soy beans, Ingalls 435 



The growth of sugar beet 435 



Experiments on cultivation of sugarcane at Partabgarh, 1909-1911, Clarke et al. 435 



Sweet potato investigation, Keitt 435 



Crop rotation and fertilizer experiments with sun-cured tobacco. Green 436 



Growing and curing sun-cured tobacco. Green 436 



