1917] CONTENTS. Ill 



FIELD CROPS. 



Page. 



[Work with field crops], Smith 332 



[Fertilizer experiments], De Jong 332 



Principles of breeding certain agricultural plants. — V, Grasses, Fruwirth 332 



Some common grasses and how to know them, MacDougall 333 



A trial of grass mixtures, Hilgendorf 333 



Composition of several forage grasses of German East Africa. Reich et al 334 



Medicago falcata, a yellow-flowered alfalfa, Oakley and Garver 334 



Lucern inoculation experiment, Heinrich 335 



Alfalfa conditions in New England, Jeffers 335 



Barley improvement, Spragg 835 



Fasciation in maize kernels, Wolfe 335 



Work of the Pskof experiment station for flax culture, D'lakonov 335 



A handbook of industrial plants in common use, Farnsworth et al 336 



Oat breeding experiments, Pridham 336 



Observations on potato culture, Kotelnikov 336 



The influence of overabundant soil moisture on potato tubers, Arkhangelskii . . 336 



Further ex])eriment8 in crossing potatoes, Wilson 336 



Harvesting and storing potatoes, Malpeaux 336 



The soy bean, with s]*ecial reference to its utilization, Piper and Morse 336 



Tobacco growing in the Connecticut River Valley, Smith 337 



Improvement of Ghirka spring wheat in yield and quality, Clark 337 



Red Rock wheat, Spragg and Clark 338 



Methods of sowing Poltavki spring wheat, Golodets 388 



Nitrogenous fertilizers in wheat culture, Malpeaux 338 



A seed-testing key, Cockayne 338 



Contribution to testing the germination of grass seeds, Kling 338 



[The examination of beet seeds], Heinrich 339 



Size relation between dry and soaked seed of clover and dodder, Heinrich 339 



[Cooperative experiments in weed eradication] 329 



Pteris aquilina. — Life history and eradicatipn], Gordon 339 



HORTICULTURE. 



Report of the horticulturist, Kinman 340 



The supposed deterioration of vegetables in Porto Rico, Kinman and McClelland 340 



Managing the orchard, Moore 341 



Winterkilling of peach buds, Thayer 341 



Practical fig culture in Arizona, Lawrence 341 



Composition of grapes grown in the Central and Eastern States, Alwood et al. . 342 



Report of the assistant horticulturist, McClelland 342 



Freezing-point lowering of leaf sap of Persea americana, Harris and Popenoe. . . 343 



The two groups of varieties of the Hicora pecan and self -sterility, Stuckey 344 



Effect of cultural and climatic conditions on peppermint oil, Rabak 344 



FORESTRY. 



The economic woods of Hawaii, MacCaughey 345 



The uses of Formosan trees, Kanehira 345 



The assortment ratios of s])ruce, silver fir, and beech, Fliiry 345 



Influence of intensity of thinnings on yield of young fir, Mer 345 



Douglas fir fiber, with special reference to length, Lee and Smith 345 



Some characteristics of slash pine, Mattoon 345 



Seeding of Hevea at different altitudes on Gunong Angsi, Spring 345 



Ecology of sal. — II, Seedling reproduction, Hole and Singh 345 



The forests and streams, Da Sih eira 346 



The effect of forests upon water circulation, Beekman 346 



National Forest organization, Wynne ._ 346 



Conversion methods in forests of Chaux and Faye de la Montrond, MacMillan. 346 



Yearbook of the department of forestiy 346 



Report on forest administration in Bengal 1914-1915, Muriel 346 



Forestry in India from a Canadian point of view, MacMillan 346 



Passing views of forestry in British South Africa, MacMllan 346 



Report of the director of forests. Jolly 346 



China's forest laws, Sherfesee 347 



