CONTENTS. in 



Page. 



Cooperation of micro-organisms in utilizing insoluble phosphates, De Grazia 717 



On the part bacteria play in fertilizing operations, Ehrenberg 717 



Field tests with plant foods, materials and results, Huston 717 



Green manuring 717 



Poultry manures, their treatment and use, Brooks 717 



Urine-earth as a manure, Clouston 718 



Recent investigations on lime nitrogen, Stutzer, Reis, and Soil 718 



Chemical and physiological experiments with cyanamid and derivatives, Reis. 718 



The agricultural utilization of atmospheric nitrogen, Zeisel 719 



The availability of nitrogen in peat, peat moss, and elephant dung, Annett 719 



Potassium silicate (ground phonolite) as a potash fertilizer, Wein 719 



A new fertilizer — Palmaer phosphate, Grandeau 719 



The Palmaer method of preparing phosphatic fertilizers, Ebbinghaus 719 



Palmaer phosphate, the latest commercial fertilizer, Fingerling 719 



Fertilizer experiments on moor soils with Palmaer phosphate, von Feilitzen. . . 719 



The use of lime in Massachusetts agriculture, Brooks 720 



The occurrence of manganese in soil, and its effect on grass, Guthrie and Cohen . 720 



Fertilizers, 1910, McGill 720 



Fertilizers . 720 



AGRICULTURAL BOTANY. 



Handbook of agricultural bacteriology, Lohnis 720 



Chilean fungi, Spegazzini. 721 



Latent vitality of the spores of the Mucorineee and Ascomycetes, Becquerel 721 



The inhibition of nitrification by organic matter, Stevens, Withers, et al 721 



Some factors in fixation of nitrogen by Azotobacter, Hoffmann and Hammer. 721 



On the influence of humus material in urea decomposition, Christensen. 722 



Effect of previous heating of the soil on growth and germination, Fletcher 722 



The effects of injuring the cotyledons on the growth of the seedlings, Jacobi 723 



On the metabolic changes due to geotropic stimulation, Grafe and Linsbauer. . 723 



On the excretion of roots, Brocq-Rousseu and Gain 723 



Influence of light on the development of fruits and seeds. Lubimenko 723 



Determination of optimum intensity of light for plants. Combes 723 



The connection between leaf form and light requirement, Wiesner 724 



Changes produced in direct sunlight when it enters the foliage, Wiesner 724 



Perception of light by plants, Blaauw 724 



The relation of hairy and cutinized coverings to transpiration, Wiegand 724 



Leaf color and chloroplastid formation in evergreen woody plants, Vouk 724 



The direct absorption of nitrites by plants, Perciabosco and RosSo 724 



Absorption of nitrogenous organic substances by the roots of phanerogams, Grafe . 725 



The formation of glucosids by plants, Ciamician and Ravenna 725 



A study of hydrocyanic acid in Sambucus, Ravenna and Tonegutti 725 



Liberation of oxygen and CO2 during disappearance of anthocyanin. Combes. . 725 



Experiments on transformation of starchy and fatty contents of trees, Weber 725 



The behavior of plants toward lithium salts, Ravenna and Zamorani 726 



Poisonous action of alkaloidal solutions on soils and plants, Otto and Kooper. . 726 



The effects of factory smoke on pine forests, von Rusnov 726 



The grasses of Alaska, Lamson-Scribner and Merrill 727 



Philippine Leguminosfe, with keys to genera and species, Merrill 727 



North American Trifoliums, McDermott 727 



On the wild types of cultivated potatoes, Berthault 727 



On the interaction between scion and stock, Meyer and Schmidt 727 



The underground organs of a few weeds, Pammel and Fogel 727 



Green hemiparasites, Heinricher 727 



FIELD CROPS. 



[Experiments with alfalfa, corn, grains, and potatoes], Waldron and Grace 727 



Annual report of the Bankipore Agricultural Station for the year I90S-9, Smith. 728 



Annual report of the Burdwan Agricultural Station for the year 1908-9, Smith. . 728 



Annual report of the Cuttack Agricultural Station for the year 1908-0, Smith. . . 729 



Annual report of the Dumraon Agricuhural Station for the year 1908-9, Smith. . 729 



Results of experiments: Experimental farm, Potchcfstroom, Holm 729 



Experiments with clovers, vetches, bean.-!, sulla, sainfoin, lupines, and kale. . . . 730 



[Problems of crop production], Juhlin-Dannfelt 730 



