CONTENTS. m 



AGRICULTURAL BOTANT. 



Page. 



Form and structure of plant hybrids in comparison with their parents, Brown. . 320 



On the partial sterility of Nicotiana hybrids, Goodspeed 320 



Bearing of teratological development in Nicotiana on heredity, Wh.ite 321 



Tetraploid mutants and chromosome mechanisms, Gates 321 



Variation in Lotixs comiculatiLS and Trifolium repens, Armstrong and Horton. . . 321 



Is salinity a factor in the distribution of Nereoajstis luetkeanaf Rigg 322 



Effect of lime on alkali tolerance of wheat seedlings, LeClerc and Breazeale... 322 



Antitoxic effect of calcium on some salts in nutritive solutions, Robert 322 



Starch content as related to geotropism of roots, Block 322 



Symbiosis of plants as a chemical problem, Zellner 323 



The influence of manganese on the formation of chlorophyll, Mameli 323 



On the state of chlorophyll in plants and colloidal chlorophyll, Herlitzka 323 



The distribution of ions within the plant body, Acqua ' 323 



Respiration of plants as hydrolytic oxidation, Palladin 324 



Absorption of oxygen by respiratory chromogens, Palladin and Tolstaja 324 



Fluctuations of respiration in foliage leaves in darkness, Meyer and Deleano. .. 324 



Some bacteriological studies of old soils, Sharp 325 



The activity of bacteria in forest soils, Migula 325 



The phenomena of fermentation as acts of digestion, Maze 325 



How legume plants get their nitrogen, Whiting 326 



Instructions regarding inoculation from Royal Institute of Agricultural Botany . 326 



Chemical treatment of seeds for slow imbibition, Verschaffelt ". . 326 



The influence of radio-activity on germination. Petit and Ancelin 326 



The occurrence of callose in root hairs, Ridgway 326 



The vitality of pollen, Crandall 326 



Directions for collecting plants, Ricker 327 



International catalogue of scientific literature . M — Botany 327 



FIELD CROPS. 



Influence of various fertilizer salts on germination of seeds, Ruscho 327 



On the significance of variety tests, Barus 329 



Deep cultivation, Dumont 329 



Seeing the light at Anderson, Du Puy 329 



The work of the Yuma Experiment Farm in 1912, Peterson 330 



Miscellaneous crops, Peterson 330 



The work of the Delta Experiment Farm in 1912, Irish, jr 330 



Field experiments at the moor experiment station, Tacke 331 



[Field crops], Bersch 331 



Catch crops, Wibberley 331 



Cooperative tests of alfalfa from Siberia and European Russia, Hansen 331 



Alfalfa inoculation tests, Pugsley 332 



A Mendelian study with beets, Kajanus 332 



Action of fertilizers on exterior appearance of beets, Roemer and Wimmer. . . . 332 



The influence of light on the growth of beet seeds, Strohmer 332 



Beet seeds, Weiss 332 



The inheritance of quantitative characters in maize, Emerson and East 333 



Variety tests of com. Burgess 335 



How to grow an acre of com. Hartley 335 



American com growing methods in Bessarabia, Grout 335 



Local fertilizer experiments with cotton in south Alabama, Duggar et al 335 



Local fertilizer experiments with cotton in north Alabama, Duggar et al 336 



The dasheen, a root crop for the Southern States, Young 336 



Irish potato investigations, 1909-1913, White 336 



The culture of rice on the Kasai River, Congo Free State, Mestdagh 336 



The mineral composition of cane at various times of the year, Boname 336 



Three-year experiment with Squarehead varieties of wheat, IJohracr 336 



Intensive cultivation of grain, Dumont 337 



The wild oats (Avena/atun), Zade 337 



Weeds of cultivated soils, Wehfarg 337 



The Maryland seed law. Smith 337 



The control of agricultural seeds in Switzerland, Long 337 



HORTICULTURE. 



[Fruit and vegetable tests at the Yuma Experiment Farm in 1912]. Foter^-^n. . 338 



The horticultural industry at Ghent, Delmotte 338 



[Vegetables at Wialey ] 338 



