1918] CONTENTS. tTT 



Page. 



Action of some olygod^iiamic elements on nitrogen-fixing bacteria, Montanari. . 428 



The germination of seeds in saline solutions, Lesage 429 



Assimilation of nutrients by [rice] plants, Sen 429 



Some sources of ethylgalactosid, Mougne 429 



Industrial fumes and injury therefrom to vegetation, Sabachnikoff 429 



FIELD CROPS. 



Experiments in field technique in rod row tests, Hayes and Ai'uy 429 



Improved technique in preventing access of stray pollen, Waller and Thatcher . . 430 



P'ield crops] work of the San Antonio experiment farm in 1916, Letteer 430 



Field crops work at Umatilla experiment farm, Oreg., in 1915 and 1916], Allen. 431 



Field crops work for 1916], Gilchrist 432 



Field crops work for 1917], Gilchrist 432 



Field experiments, 1916 432 



Agi'icultm-al experiments. — Report for year 1915-16, Spafford et al 433 



[Field crops work at the Coimbatore Agiicultural Station], Wood 433 



[Field crops work at the Hagari Agricultural Station], Hilson 433 



[Field crops work at the Nandyal Agiicultural Station], Hilson et al 433 



Experiments with clovers and grasses, Stebler 433 



Concerning alfalfa and soy beans, Hills 434 



Irrigation of alfalfa, Fortier 434 



Influence of the frequency of ii-rigation on the yields of alfalfa, Allen 434 



Bean growing in Washington, Oregon, and Idaho, Fluharty, revised by Hunter. 434 



Red clover experiments. — Second series, Gmelin 434 



Selecting corn seed , Babcock 434 



Manufacturing tests of official cotton standards for grade. Dean and Taylor 434 



Pollination and cross-fertilization in Andropogon sorghuvi, Graham 435 



Variety study of the Irish potato. Wicks 436 



The fall crop of Irish potatoes. Wicks 437 



Sugar-cane experiments in the Leeward Islands, 1915-16, Tempany et al 437 



Effect of sodium nitrate on wheat, Davidson and LeClerc 438 



The quality of western-grown spring wheat, Bailey 439 



Winter wheat in the Great Plains area, Chilcott et al 440 



Extending the area of irrigated wheat in California for 1918, Adams 441 



More wheat 441 



Agricultural seed: Concerning the germination of seed, Burns et al 441 



Seed Reporter 441 



HORTICULTURE. 



The winter storage of roots, Aldrich 442 



War vegetable gardening and the home storage of vegetables 442 



The forcing of plants by means of warm water immersions, Bodine 443 



Colors in vegetal:>le fruits, Halsted 443 



[Horticultural investigations at Umatilla experiment farm, Oreg.], Allen 443 



glorticultural experiments at San Antonio experiment farm], Letteer 444 



andling and precooling Florida lettuce and celery, Ramsey and Markell. . . . 444 



Concerning quality in celery, Norton 444 



Breeding sweet corn resistant to the corn earworm, Collins and Kempton 445 



Experimental projects of the division of pomology, Howard 446 



The science of fruit growing, Bogue 446 



Apple breeding in Canada, Macoun 446 



Citrus culture, Guitet-Vauquelin 446 



[Coconuts and coffee] 446 



The grafted jujube oi China, Fairchild 446 



Chi'ysanthemum varieties, Shamel 446 



LongeN-ity in lily pollen, Horsford 446 



A striking reproductive habit, Hansen 446 



Petalization in the Japanese quince, Hansen 446 



"Bog" gardening with native plants, Taylor 447 



FOEESTRY. 



The administration of the State forests in Hokushu, Shishido 447 



Effects of gi-azing upon western yellow-pine reproduction, Hill 447 



Germiaation of pine seed, Wibeck 447 



