CONTENTS. Ill 



Page. 



Soil evaporation, True 823 



The water-raising capacity of soils, Kossovich 824 



Lysimeter experiments. Peck 824 



Fertilizer experiments, Georgeson 825 



The law of the minimum and its applications, Mitscherlich 825 



The use of artificial and chemical manures [on tea] 825 



Effect of fresh and well-rotted manure on plant growth — second report, Fred. . 825 



The loss of nitrogen from thin layers of manure on the soil, Jannes 826 



Availability of insoluble nitrogen in certain fertilizers, Hartwell and Pember. . . 826 



The preservation of lime nitrogen in the Tropics, Milo ' 826 



The production of sulphate of ammonia in the year 1910, Atwater 827 



The chemical constitution of Thomas slag, Bcrnardini 827 



The occurrence of manganese in soil and its effect on grass, Guthrie and Cohen. . 827 



The function of manganese as a fertilizer, Bemardini 827 



Mineral resources of the United States, 1909. — Part II, Nonmetallic products. . 827 



Fertilizers, Rose and Heimburger 827 



Analyses of fertilizers and cotton-seed meal, 1910-11, Kilgore et al 828 



AGRICULTURAL BOTANY. 



An introduction to vegetable physiology, Green 828 



Investigations on the role of fats in the lower plants, Dubaquie 828 



Studies of variation in plants, Love 828 



The Fi heredity of size, shape, and number in tomato leaves, Groth 828 



The infection of root hairs by means of Bacillus radicicola, Fred 829 



FIELD CROPS. 



[Field crops experiments in Alaska], Georgeson et al 829 



[Guam forage crop and grain storing experiment.s], Thompson 830 



[Nebraska field crops experiments] 830 



[Nevada field crops experiments], Kennedy and True 831 



The utilization of logged -off land for pasture. Hunter and Thompson 832 



Alfalfa at the Pennsylvania State College, Gardner 832 



Relation of climate to water used by corn, Kiesselbach and Montgomery.. 832 



Correlation studies of corn, Montgomery 833 



Genetic correlation and spurious allelomorphism in maize, Emerson 834 



Muslin screens to keep corn from crossing, Carrier 835 



Gottingen oats, I, II, III, IV, Tornau 835 



The sweet potato, Groth 835 



The culture of Sumatra tobacco under shelter, Frear and Hibshmau 835 



1909 experiment with Sumatra tobacco under shelter, Hibshman 836 



Roumanian wheat, Zaharia 836 



The eradication of quack grass, Gates 836 



HORTICULTURE. 



Horticultural investigations in Alaska], Georgeson et al 836 



Report on vegetable experiments], Thompson 837 



klelon culture. Troop 837 



Peas and pea culture, Sevey 837 



Concerning the comportment of a hybrid race of peas, Baccarini 837 



Measures undertaken for the development of fruit gro\ving in Bavaria, Rebholz . 837 



Fruit-bud formation and development, Drinkard, jr 837 



Experiments in the pollination of our hardy fruits, Hooper 838 



Pollination of Bartlett and Kieffer pears, Fletcher 838 



A new method of handling pollen. Green 838 



Relative success of different grafts, Stewart 839 



Frost fighting investigations, Kennedy 839 



The district street plantations in Offenbach, Biesterfeld, and Lierke 839 



Lime-sulphur on peaches, and in summer control of scale on apples, Stewart. . 839 



Some new data regarding the lime-sulphur wash. Van Slyke 839 



Some new fruits, Hansen 840 



Investigations on the mortality of plums, Rabate 840 



Experimental plantings with grapes at Wadenswil Station, Schellenberg 840 



American grape stocks selected by Prussian experiment stations, Schmitthenner. 840 



Report of the grape grafting station Geisenheim-Eibiugen, Fischer et al 840 



