• CONTENTS. in 



Page. 



The relation of yeasts and molds to nitrates, Kossowicz 726 



The nitrate ferment and the formation of physiological species, Beijerinck 726 



Hybridization, cross-pollination, and water requirement, Briggs and Shantz. . . 726 



Relation between light and formation of essential oil, Lubimenko and Novikov. 726 



Artificial photosynthesis by means of chlorophyll, Osterhout 727 



The effect of electrolytes on oat seed, Plate 727 



A new device for sterile preservation of seeds. Plant 727 



The heredity of fascination in Bunias orientalis, Pirotta and Puglisi 727 



Flora of New Mexico, Wooten and Standley 727 



Tropical North American species of Panicum, Hitchcock and Chase 727 



FIELD CROPS. 



A criterion of substratum homogeneity in field experiments, Harris 727 



[Field crops] work of the Truckee-Carson farm in 1914, Headley 728 



[Field crops work at the Canadian stations and farms in 1913], Grisdale et al 728 



Experiments with spring grain in 1914, Fedorov 728 



Wild white clover, M' Alpine 729 



Corn, Bull 729 



Single-stalk cotton culture at San Antonio, Meade 730 



Improvement of cotton in Bombay Presidency, Kulkami and Kottur 730 



Flax culture, Kuhnert 731 



Development of oats under irrigation and root pruning, Schulze 731 



Oats for North Carolina, Williams 731 



Experiments with potatoes, Fedorov 731 



Soy bean growing in North Carolina, Williams 731 



Experiments with fertilizers and manure on tobacco, Thorne 731 



Tobacco: Influence of fertilizers on composition and quality, Ames and Boltz. 732 



Tobacco growiug in MLonesota, Bull 734 



Hairy vetch, Shoesmith 734 



Spacing and depth of planting for spring wheat, Bochkova. 734 



Laboratory investigations of seeds of rye and oats, Leontevskii 734 



Weediness of fields and influence of various methods of husbandry, Leshchenko . 734 



HORTICTJLTURE. 



Report from the division of horticulture for 1914, Macoun et al 735 



[Variety tests with vegetables], Headley 735 



Insecticides and fungicides, Shutt 735 



Orchard sprayuig, Lewis - 735 



Effecta of pruning, etc., on formation of fruit buds on apples, Drinkard, Jr 735 



Cranberry growing, Franklin 736 



Utilization of peat land for cranberry culture. Shear. 736 



History of the vine and its culture in the Loraine region, Riston. 736 



Experiments with citnis stocks. — The first five year average, Bonns 736 



Improvement of lemon varieties by bud selection, Shamel 737 



The relation of washing to decay in Washington navel oranges, Mann 737 



Some experiments in pineapple planting, Capistrano 737 



[Cacao experiments, 191.3-14], De Verteuil 738 



The flower garden, Sanders 738 



FORESTRY. 



Forest administration in the southern Appalachians, Woodward 738 



Present condition of applied forestry in Canada, MacMillan 738 



Sand dune reclamation in northern California and southern Oregon, Kellogg. . . 738 



Notes on the relation of planting methods to survival. Carter 738 



A formula for normal growing stock in selection system forests, Munger 738 



A possible measiure of light requnements of trees, Ashe 738 



The constmction of a set of taper curves, Barrows 739 



Reading and replotting curves by the strip method. Barrows 739 



The clinometer on fire lookouts, Bruce 739 



The invasion of a planted prairie grove, Pool •-----.-•• I'l'^ 



Retarding effect of lune on the ^owth of conifers, Hopkmson and Elkington. . /.iy 



A study of Douglas fir seed, Willis and Hofmann 739 



Douglas fir and fii-e, Judd ''^^ 



