CONTENTS. in 



Paffo. 



The discrepancy between the results obtained in pots and in the field, Cohen. 519 



Loss of fertilizer constituents in drainage water, Blair 519 



Sodium nitrate, calcium nitrate, and calcium cyanamid on moor soils, Rindell. 519 



The present status of the artificial nitrogen fertilizer industry, Dafert 519 



The nitrate of soda industry of Chile, Diaz-Ossa 519 



New methods in the ammonia industry, Holbling 520 



[Nitrogenous fertilizers derived from the air] 520 



Action of organic compounds as modified by fertilizers, Sclu-einer and Skinner. 520 



Effect of the "wet process" on availalnlity of nitrogen, Hartwell and Pember. 520 



Relation of active potash to pot experiments, Fraps 520 



Mica as a source of potash for plants, Blanck 520 



Preparation of superphosphate with sulphur dioxid and chlorin, Sestini 521 



Guano supply of French Somaliland, Schulz 521 



Fertilizer from city refuse 521 



The utilization of sewage sludge 521 



Annual report on fertilizers August 1, 1911, Ross 521 



Analyses of commercial fertilizers, Scovell and Curtis 521 



Russian fertilizer situation 521 



AGRICULTURAL BOTANY. 



Chemical effects of radiant energy in plant processes, Spoehr 521 



Rhythm in plant development, Klebs 522 



Transpiration in succulent plants, Delf 522 



The water relations of halophytes and sclerophylls, Lloyd 522 



The influence of methylene blue on the respiration of plants, Palladin et al. . 523 



The influence of methylene blue on the respiration of plants, Hiibbenet 523 



The freezing of plants, Molisch 523 



Effects of severe frosts on vegetation in active growth, Butters and Rosendahl. 523 



Chemical protection of plants against freezing, Maksimov 524 



Germination of seed as affected by sulphuric acid treatment, Love and Leigh ty. 524 



The influence of the seed upon the size of the fruit in Staphylea, II, Hams. . 524 



Some points in the morphology and physiology of fasciated seedlings. Reed . . 524 



Transformation of reserve substance in Dahlia variabilis, Sciacca and Zerilli. 525 



Displacement by water of nutritive substances in plants, Andr6 525 



Significance of protein assimilation in the life processes of plants, Ehrlich.. 525 



The building of protein by yeasts and mold fungi, Ehrlich 525 



Carbon assimilation as affected by organic acids and their salts, RaAdn 525 



The foiTQation of saccharose in sugar beets, Strohmer, Briem, and Fallada 526# 



The role of catalase in plants, Zaleski and Rosenberg 526 



Total and nitric nitrogen in parasitic and saprophytic plants, Lutz 526 



The relation of some fungi to organic acids, Herzog, Ripke, and Saladin 526 



Studies on iron-storing Hyphomycetes, Lieske 527 



On arbutin in leaves of Grevillea rohiista, Bourquelot and Fichtenholz 527 



Wood coloring in living spruce, von Tubeuf 527 



The influence of sea water on the distribution of plants, Harshberger 527 



Minnesota mushrooms, Clements 528 



Plant introduction for the plant breeder, Fau-child 528 



The present state of the mutation theory, Blaringhem 528 



(Enothera nanella, healthy and diseased, De Vries 528 



FIELD CROPS. 



Range improvement, plant introduction, and plant breeding], Thomber et al. 528 



Work at Sulphm- Springs and Snowflake dry farms], Clothier and McOmie 529 



Variety and manurial tests with cereals and root crops], Foulkes et al 529 



Field experiments in 1910, Tulaikov 530 



[Experiments at the Kaiser Wilhelm Institute for agriculture], Gerlach 531 



Irrigation experiments in 1909, Gerlach 531 



The water economy of dry-land crops, Kearney and Shantz 531 



Some misconceptions concerning dry farming, Chilcott 531 



Rotations in the com belt, Smith 531 



Wheat and oats, Burgess 531 



Report on field trials with varieties of oats and wheat in 1909, Milbum 531 



Report on field trials on the manuring of seeds hay in 1909, Blackshaw 532 



[Fertilizer and variety tests with meadow hay, swedes, and potatoes] 532 



