1918) CONTENTS. HI 



AGRICULTURAL BOTANY. 



Page. 



The methods and value of cytology, Gmlliermond 328 



A study of the fixation of the cytoplasm, GuilUermond 329 



Presence of lipoids in Nicotiana as related to starch and nicotin, Parrozzani. . . 329 



Carbon [assimilation] in green plants, PoUacci 329 



Report of the bacteiiologist, Mulvania 329 



Influence of water and ash on plantlets, Maquenne and Demoussy 329 



The influence of calcium salts on absorbing root hairs, Coupin 330 



The use of perphosphates in agriculture, Barbieri 330 



Greenhouse fumigation -with hydrocyanic acid, Moore and Willaman 330 



Physical control of vegetation in rain-forest and desert mountains, Shrcve. . . . 330 



Critical flowering and fruiting temperatures for Phytolacca decandra, Lloyd 330 



Modifications produced by soa winds in male inflorencences of pine, Dufrenoy. 331 



Natural coagulation in latex of Eevea hrasiliensis, Denier and Vernet 331 



ScxuaUty in Myxomycetes, Skupienski 331 



Parthenogenesis in liigher plants, Hagedoom-La Brand and Hagedoorn 331 



Quadruple hybrids in Y^ from Q^nolhera nutans and pycnocarpa, Atkinson 331 



Inheritance of a mosaic pericarp pattern color of maize, Hayes 332 



The hybrid origin of alfalfa, Trabut 332 



Origin, introduction, and primitive culture of the potato, Wight 332 



Forest botany [India], Hole 332 



FIELD CROPS. 



[Report of the agronomy department, Montana Experiment Station], Atkinson 333 



[Field crops work in Tennessee] 334 



Progress report. Substation No. 5, Temple, Tex., 1910-1914, Killough 334 



[Report of field crops work]. Watts 335 



Plants indigenous to Chile and their production, Reiche 336 



Field experiments at the Bezenchuk Experiment Station], Koltsov 336 



Report of field crops work in Assam], McKay 336 



Report of field crops work], Henderson and Abdur Rahman 336 



Report of field crops work], Clayton 336 



Report of field crops work at Palur Station, Thomas and Chelvaranga Raju. . . 336 



^Field crops work ait Samalkota Station], Hilson and Balakrishnamurti 337 



Grasses and clovers under irrigation, Pitt 337 



Effect of plants on others, Hartwell. ._ 337 



Berseem as a new fodder crop for India, Henderson 338 



The castor oil plant in Egv-pt, Mosseri 338 



Ordinary white clover seed v. wild white clover seed, Jenkin 338 



Analyses of agricultural yield. — III. Natural environmental factors, Balis 338 



Aborescent cotton plants, "de Motril" and " Caravonica, " Riviere 340 



Some notes on malangas, Cunliffe 340 



Spring-oat production, Warburton 340 



The assimilation of nutrients by the rice plant, Jatindra Nath Sen 340 



Rye growing in the Southeastern States, Leighty 341 



Sorghums for forage in South Dakota, Champlin and Winright 341 



Sugar beets in South Dakota, Shepard and Sherwood 341 



Velvet beans. Fain, Starr, and Vanatter 342 



Velvet beans in Mississippi, Ferris 342 



Growing winter wheat on the Great Plains, Chilcott and Cole 342 



Proportion of grain to sheaf aa a factor in wheat selection, Pridham 342 



Seed Reporter 343 



A seed key to some common weeds and plants, Palmer 343 



HORTICULTURE. 



Vegetable forcing. Watts 343 



The California vegetables in garden and field, Wicksou 343 



Vegetable growing, Truffaut 343 



Everyman 's garden in war time, Selden 344 



Report of the State horticultin-ist, Wilkins 344 



[Report of horticultural investigations], Whipple 344 



Market gardening 344 



Head lettuce for Ohio greenhouses, Green 344 



Growing Bermuda onion seed in the southwestern United States, Mason 344 



