CONTENTS. ni 



AGRICULTURAL BOTANY. 



rage. 



Experimental studies in the physiology of heredity 428 



Physiologically arid habitats and drought resistance in plants, Dachnowski.. 428 



The green parts of plants and light, Liihr 428 



The coloration of red grapes and the autumn coloration of leaves, Laborde. . . 428 



The respiration of plants, Czapek 429 



The formation of ammonia in plant tissues deprived of oxygen, MoUiard 429 



On nitrogen fixation in soils with cellulose as a source of energy, Koch 429 



Denitritication and nitrogen fixation in cultivated soil, Marr 430 



Biological and chemical studies on nitroso bacteria. Gage 430 



The action of Marasmius oreades on plant growth, ^lolliard 430 



Injury to vegetation and animal life by smelter wastes, Haywood 430 



International catalogue of scientific literature. M — Botany 431 



FIELD CROPS. 



Limitations in field experiments, Carleton 431 



Field crops, Scott 431 



Lessons from recent crop experiments, Stewart 432 



Cooperative field trials, 1908-9, Larsen 432 



Report of the Hedemarken County Experiment Station, 1909, Christie 432 



Report of the substation of the Swedish Seed Association at Lulea, Ulander . . 432 



Report of agricultural stations in Eastern Bengal and Assam for 1909 432 



Repcirt of experimental field of Upper Dnieper Agricultural Society, 1908. Kol. 433 



From tbe Zapolsk Experiment Station, Dyakonov 433 



The improvement of cereals — Patrick Shirreff's work. Smith 433 



Dry-land grains in the Great Basin, Farrell 434 



Suggestions to settlers on the Columbia River Valley, Hunter and Jayne 435 



Experiments with windbreaks, Esbjerg 435 



The culture and storage of root crops, Delwiche : . . 435 



Plants with edible tubers, Jumelle 435 



Harvesting 436 



Grass plats at the experiment station during the last 15 years, Rhodin 436 



Abaci (Manila hemp), Edwards and Saleebv 436 



Alfalfa, Willis and Bopp ". 436 



Alfalfa, Westgate 436 



Chou iNIoellier or marrow cabbage, Lawrence 436 



Variety tests of corn at Columbia, IMiller and Hughes 436 



How to grow 100 bushels of corn per acre on worn soil, Smith 437 



Experiments in cotton growing, Borzi 437 



A study of oat yields, Hunt 437 



The compositiiin of oats and its variations, Hendrick 437 



Some information concerning old Norwegian oat varieties, Christie 438 



The potato, Butler 438 



Rye improvement and cooperative tests in Denmark and Germany, Ljung 438 



Seedling canes on the north side, Murray 438 



Cultural methods for wheat growing in dry districts, Sutton 439 



Prizes for improved wheats 439 



Results of seed investigations for 1908-9, Pammel and King 439 



Seeds of Michigan weeds, Beal 439 



HORTICULTURE. 



Horticulture and pomology in the vicinity of Hamburg 439 



Experiments with croi)S grown from domestic and foreigh seeds, 1909, Lind.. 439 



The preparation of horticultural products for shipment to foreign countries. . 439 



Precooling fruit for shipment, Gay 439 



Vegetable planting table for the South, Baldwin 440 



Growing and marketing asparagus, AVheeler 440 



On the chemical composition of the cardoon ( Cynara atrdunculus) , I'eaiio 440 



Trufiie culture, Mattirolo 440 



The amelioration of waters intended for irrigating vegetables 440 



Irrigation of orchards, Fortier 440 



Fruit growing in the arid regions, Paddock and Whipple 440 



The pomology of Calvados, Warcollier 440 



[Fruit investigations in New Zealand], Palmer et al 440 



The protection of orchards in the Pacific Northwest from spring frosts, O'Gara. 441 



