CONTENTS. Ill 



Page. 



Comparative investigations on fertilizer action of nitrate and nitrite, Kellner. 225 



Some oliservations on the action of lime nitrogen, Stutzer 225 



Analysis of a sample of calcium cyanamid, Aeby 225 



Production of nitrous acid and ammonia during distillation, Van Melckebeke. 225 



Economic geology of the feldspar deposits of the United States, Bastin 225 



Phosphates of the Pacific, Lemoine 225 



Phosphates of the oceanic islands, De Launay 225 



Phosphates of the Pacific, Courtet 225 



Influence of CaCO-j and MgC03 on soil and plants, Kossovich and Althausen. . 226 



The use of boron as a catalytic fertilizer, Agulhon 226 



AGRICULTURAL BOTANY. ■ 



Landmarks of botanicai nistory, I, Greene 227 



Essays in commemoration of Charles Darwin, Seward 227 



Report of department of botany, Hasselbring 227 



Some new hybrids and their bearing on the classification of wheat, Buffum.. 227 



Notes on teratology in tropical plants, Cook , 227 



Change of sex in JTumulus lupulus not due to traumatism, Stockberger 227 



Corallorhiza and mycosymljiosis, Gruenberg 228 



Studies upon oxidases, Hasselbring and Alsberg 228 



The protection of plant cells against fungus attack, Brullov 228 



.Studies on the development of bulbous plants, Andre 229 



Winter condition of lenticels, Kenoyer 229 



Effect of various gases on etiolated seedlings of the sweet pea, Knight et al. . . 229 



The distribution and formation of respiratory chromogens in plants, Palladin. 230 



Influence of phosphates on the respiration of plants, Ivanov. 230 



The role of 1 )oron in plants, Agulhon 230 



The influence of lime on soil bacteria, Fischer 231 



Effects of acidity of culture media on morphology in Penicillium, Thom 231 



International catalogue of scientific literature. R — Bacteriology 231 



FIELD CROPS. 



Dry land farming in eastern Colorado, Cottrell 231 



Crop rotation for Illinois eoils, Hopkins 231 



On the manuring of pastures in New Zealand, Aston 232 



Annual report for 1909, Hall 232 



Experiments in cultivation, Dammann 232 



Experiments in the cultivation of forage plants, Schroeder and Dammann 232 



[Rice and cotton investigations] , Kelley and Krauss 233 



Manuring rye grass and clover at several centers, 1906-7, Porter and Gaut 233 



Spring grains, Ten Eyck 234 



The tillering of cereals, Schoute 234 



Rejjort of alfalfa investigations, Blinn 234 



Experiments in the production of brewing barleys, Dammann 235 



Experiments on the cultivation of forage and sugar beets, Dammann 235 



Fertilizer experiments with sugar beets, Graftiau 235 



Fertilizer experiments with sugar beets, Saillard 235 



Tests of the cultural value of varieties of corn, Dammann and Schroeder 235 



Corn, Dodson and Roy , 236 



Manurial experiments with cotton in the Leeward Islands, Tempany 236 



[Shrinkage of hay in the stack]. Wale - 236 



The cultivation of hemp in the United States, Dewey 236 



Characteristics of some varieties of oats. Gross 236 



Report on experiments with potatoes, 1909, Stewart 236 



Results of experiments in potato culture, Cadoret 237 



The rice growing season of 1908-9 in Cochin China, De Flacourt 237 



Comparative composition of the rice of Iguape and other regions, Granato. . . 237 



[The relation between the time of blooming and harvest of winter rye], Ihne. 237 



Sugar cane in Porto Rico, May 237 



Report on wheat growing in Verricres in 1909, De Vilmorin 238 



A quantitative method for the determination of hardness in wheat, Roberts. . 238 



Fertilizers for vv heat soils, Whitney 239 



Report of the test of chemical fertilizers in Greece, Melindonas 239 



Experiments on tillering and thick v. thin sowing of Red Fife wheat, Dowling. 239 



