CONTENTS. m 



Page. 



The production of peat in 1914, Davis 332 



Report of analyses of commercial fertilizers 332 



Commercial fertilizers, Hills, Jones, Williamson, and Anderson 332 



AGRICULTURAL BOTANY. 



Physiology of the intake of material by the living plant cell, II, Krehan 333 



Physiology of intake of material by plant cell, Nothmann-Zuckerkandl 333 



The influence of salts on heliotropism, Marcolongo 333 



A three-salt nutrient solution for plants, Shive 333 



The absorption of ions by living and dead roots, Johnson 334 



Influence of Rontgen rays on seeds of Viciafaba, Pfeiffer and Simmermacher. . 334 



Relation of root growth to temperature and aeration of the soil. Cannon 334 



Studies on the transpiring power of plants, Bakke 334 



The anthocyan pigments, Everest 335 



Chemistry of the Mendelian factors for flower color, WTieldale 335 



Chemistiy of the Mendelian factors for flower color, II, Wheldale 335 



Origin of dwarf plants as shown in a sport of Hibiscus oculiroseus, Stout 335 



The flora of the Northwest Coast, Piper and Beattie 336 



An Aztec narcotic (Lophophora williamsii) , Safford 336 



The name of the soy bean: A chapter in its botanical history. Piper 336 



Inventory of seeds and plants imported from April 1 to June 30, 1913 336 



FIELD CROPS. 



Prices and shrinkage of farm grains, Burlison and Allyn 336 



Crop rotation, Burdick 337 



Concerning the corn crop. Hills 337 



Development of the cotton plant: Vegetation experiments, Shreder 337 



Handling and marketing the Arizona-Egyptian cotton, Martin 338 



Results of selection of seed tubers in potato culture, Clausen 338 



Relation of moisture to yield of winter wheat in Kansas, Call and Hallsted 338 



Occurrence of manganese in wheat, Headden 339 



Wheat — barley, Symeonides 339 



Quack grass eradication, Arny 339 



HORTICULTURE. 



The vegetable garden, Watts 340 



Cantaloup marketing in the larger cities, 1914, Sherman et al 340 



What the agronomy department is doing to help the canner, Etheridge 341 



The marking factor in sunflowers, Cockerell 341 



Statistics of vineyards, orchards and gardens, and root crops, 1914-15, Sholl 341 



The self-sterility problem, Kraus 341 



Notes on the pollination of orchards, Hooper 341 



The transfusion of sap, Holmes 341 



Protection of orchards against frost by American orchard heaters, Mokrzhetskil . 341 



Renovation of the neglected orchard, Davis 341 



The apple, Wilkinson 342 



Growth of apple trees pruned and not pruned in season of planting, Chittenden. . 342 



Hardiness as correlated with structure and composition. Beach and Allen, jr 342 



Dwarf apples not commercially promising, Hall 344 



What it really costs [to grow peaches]. Page 344 



The French vines and the hybrid direct bearers in 1915, Pee-Laby 344 



Cover crops in citrus culture, Vaile 344 



Green manure crops in Java, Van Helten 344 



Mautsaka coffee, Bruijning 344 



Coffee hybrids, Wurth 344 



Notes on the layering of coffee. Lan and Faraut 344 



Cacao manurial experiments, Moore 344 



Manurial experiments at Nevis, Howell 344 



Chemical changes in the ripening coconut, Vista y Isles 344 



Spices. Heijne 344 



Medicinal plants of Wisconsin, Denniston and Kremers 345 



The nation's rose garden, Mulford 345 



The rose garden at Cornell University, Ithaca, N. Y., Beal 345 



