CONTENTS. Ill 



Page. 



The utilization of atmospheric nitrogen, Bernthsen 531 



Production of ammonia from at mospheric nitrogen, Woltereck 531 



Production of ammonia from atmospheric nitrogen by means of peat, Woltereck. 531 



Production and consumption of sulphate of ammonia in 1908, Maizieres 531 



The rational use of superphosphates, Dumont 531 



Fertilizing with wood ashes, Kaluzhskii 531 



Commercial fertilizers; fertilizer control; soil physiography, Hills et al 531 



Inspection and analyses of fertilizers on sale m the State, Hand et al 532 



AGRICULTURAL BOTANY. 



The theory of the respiration of plants, Palladin 532 



Notes on the day and night growth of plants, Nomblot-Bruneau 532 



The relation between the form of leaves and their light requirement, Wiesner. . 533 



Action of fertilizing salts on plant enzyms, Sullivan 533 



The distribution of rennet in the various parts and tissues of plants, Gerber. . . 533 



The greening of potatoes, Massee 534 



The anatomy and biological aspects of the "American mistletoe," York. . . .t. 534 



Present problems in plant ecology 534 



FIELD CROPS. 



[Field crops in 1908 at the Dickinson Substation, North Dakota], Waldron 535 



The work of the San Antonio Experiment Farm in 1908, Headley and Hastings. . 535 



Report on the work of the experiment stations of Indo-China in 1908, Lemarie. . 536 



Forage crops, Hotchkiss 536 



Grass and clover seed production in Denmark, Hollmann 536 



Conditions affecting the value of market hay, McClure 536 



Cordage fibers. Carter 536 



Alfalfa, Nelson 536 



Influence of artificial manures on yield and quality of barley, Crowther 537 



Latest results with reference to fertilizers in barley culture, Stoklasa 537 



Bermuda grass, Moorhouse, Burlison, and Ratcliff • 537 



Increasing the yield of corn. Carver 537 



Experiments in the culture of corn, De Flacourt 538 



Corn culture, Kimbrough 538 



Cotton culture, Kimbrough 538 



King cotton, Watkins 539 



The production of cotton in Egypt, Roux 539 



Hop culture on moor soils, Bersch 539 



Japan clover, or Lespedeza, Buford 539 



Jute in Bengal, Chaudhury 539 



Methods of seeding oats; drilling and broadcasting, Hume et al 539 



The time of cutting seed potatoes in its relation to yield, Osterspen 539 



The effect of sa,lt water on rice, Fraps 540 



The rice crop of 1907-8 in Indo-China, Pidance 540 



Liquid distillery refuse as a fertilizer for beets 540 



Experiments with varieties of sugar cane. Watts et al 540 



Seedling and other canes in the Leeward Islands, 1907-8, Watts et al 540 



Manurial experiments, Watts et al 540 



Manurial experiments with sugar cane in Leeward Islands, 1907-8, Watts et al. . 541 



Experiments with sugar cane, Broemer 541 



The action of soluble fertilizers on cane soils, Eekart 541 



Tobacco transplanting and further treatment in the field. Van Leenhoff 542 



The breeding and selection of tobacco. Van Leenhoff 542 



The culture of tobacco in Indo-China, Nacher 542 



Report on a test of varieties of wheat, Seton 542 



Experimental wheat fields, 1908-9, I^ee 543 



Experiments with small-celled wheat plants, Kolkunov 543 



Wheat selection, Mann 543 



Koernicke's key for classification of varieties of cereal crops, Flaksberger 543 



The breeding of agricultural plants, Fruwirth 543 



The breeding of agricultural plants, Fruwirth 543 



Agronomic habits of rootstock producing weeds, Spillman and Cates 543 



The identification of dodder by differences in the seeds, von Guttenberg 544 



