CONTENTS. m 



Page. 



Effects of smoke from towns on vegetation, Crowther and Steuart 428 



The seed coat of clover. Fominykh 428 



On the origin of cultivated rice. Chevalier and Roehrich 428 



Plant chimseras, Skene 429 



Spore plants, Rosenvinge 429 



Flora of the vicinity of New York, Taylor 429 



FIELD CROPS. 



Field management and crop rotation, Parker 429 



A hand chart of farm crops, Semenow 429 



The work of the Huntley reclamation project experiment farm in 1914, Hansen. 429 



Breeding of Alpine forms of pasture grasses, von Weinzierl 430 



Effect of clipping on jield and composition of grasses. Ellett and Carrier 430 



La^-ing down land to grass on the Clifton Park system. Hunter 431 



Universal hay calculator. Chestnut 431 



Experiments with small grains, Ricks 431 



Barley investigations. Bull 431 



Field beans. Zavitz 432 



The effect of fertiUzers on Corchonis capsularis, Albano 432 



Physiolog>' of pollen of Zea mays with special regard to \'italitj', Andronescu. . 433 



Grades for commercial corn, Duvel 433 



Cotton cultivation in Italian Somaliland, Scassellati-Sforzolini 433 



The world's cotton crops, Todd 433 



The industrial fiber plants of the Philippines, MuUer 433 



Notes on hops. 1912-1914. Salmon 433 



A new variety of hop, the "foundling." Salmon 433 



Influence of color of seed potatoes on the >deld, Schander 433 



Sugar beets: Preventable losses in culture, Sha.w 434 



Fertihzers in sugar beet culture, Saillard 434 



Experiments in the fertilization of sugar beets 434 



Variability of nitrogen appropriation of offspring of beet, Andrlik and Urban. . 434 



Bud development in sugar cane. Kamerling 435 



Administration report of the government sugar cane expert for 1913-14, Barber. 435 



A re\"iew of the results of the experiment fields, Geerts 435 



Variation of flower size in Nicotiana, Goodspeed and Clausen 435 



Parthenocarpy and parthenogenesis in Nicotiana, Goodspeed 435 



Phylogenetic studies of the varieties of tobacco, Anastasia 435 



Deli tobacco a mixture of t>'pes, Honing 436 



Chemical composition of tobacco plant m various stages of growth, Pannain. . . 436 



Determination of wheats, Fliaksberger 436 



Mass selection of spring wheat, Smebum 436 



Are there wheat varieties more or less self-fertilizing? Nilsson-Ehle 437 



Yams (Dioscorea), De Noter 437 



Weeds on the Buzuluk Experiment Field and \'icinity, Bazhanov 437 



HORTICULTURE. 



Field book of American trees and shrubs, Mathews 437 



Journal kept by Da^^d Douglas in North America, 1823-1827, edited by Wilks. 437 



Colonial plants, Jumelle 437 



Report on the botanic station for the year 1913, Campbell 438 



Vegetable growing, Johnston 438 



Tomato tests, WTiipple and Schermerhorn 438 



The cultivation of watercress 438 



The principles of fruit growing, Bailey 438 



Micmgan laws for the protection of orchards and vineyards 438 



Varieties of tree fruits for New Jersey, Blake 439 



Spring versus fall planting. Clement 439 



Spray calendar for Georgia, McHatton and Firor 439 



Apple culture in Georgia, McHatton, Firor, and Kiger 439 



Yields of apple trees at different ages, Macoun 439 



What does it cost to grow a barrel of apples? Ells 439 



The cherries of New York, Hedrick et al 439 



The cherrj' in Ontario, Palmer 440 



Smudging an orchard with native material in Alabama, Malone 440 



