1917] CONTENTS. HI 



Page. 



The families and genera of the bacteria, Winslow et al 819 



Symbiosia between legume bacteria and nonlegimies, Bmrill and Hansen 819 



The behavior of self-sterile plants, East 820 



Twin hybrids from Oenothera lamarclciana and CE.franciscana, Atkinson 820 



Naming American hybrid oaks, Trelease 820 



The anatomy of woody plants, Jeffrey 821 



Ecology and physiology of the red mangrove, Bo^vmau 821 



The chemical basis of regeneration and geotropism, Loeb 821 



The effects of acids and salts on biocolloids, MacDougal and Spoehr 821 



Anesthesia and respiration, Haas 831 



The measurement of light in its physiological aspects, Macdougal and Spoehr.. 821 



FIELD CROPS. 



Effect of fall irrigation on yields at Belle Fourche, S. Dak., Farrell and Aune. . 822 



Progress report, Substation No. 2, Troup, Tex., 1901-1914, Hotchkiss 823 



Report of the Bermuda Board of Agriculture, 1914-15, Wortley 823 



"Field crops work in Argentina], Huergo 823 



Field crops], SjTneonides 823 



Report of field crops work at the Bankipoor Station, 1915-16], Sherrard 823 



Report of work withheld crops at the Benares Station], Sharma 824 



^Report of field crops work at the Cuttack Station, 1915-16], Sethi 824 



Report of field crops work at the Dumraon Station, 1915-16], Sherrard 825 



"l^oport of work with field crops at the Oral Station], Burt 825 



Report of work with field crops at the Partabgarh Station], Sharma 825 



Report of field cropa work at the Ranchee Experiment Farm, 1915-16], Dobbs. 825 



Jieport of field crops work at Sabour Farm, 1915-16], Sil 825 



Report of field crops work at Sepaya Experiment Farm, 1915-16], Mackenzie. 826 



Fodder crops of Western India, Mann 826 



Some wild fodder plants of the Bombay Presidency, Burns et al 826 



How to change the rotation ej-stem, Sotgia 826 



Experiments in meadow culture on peat bogs, Fominykh 826 



Permanent pasture formation, Green 826 



Grasses for pastm-e and hay in Texas, Garren 827 



The selection of cereals in Italy, Patanfe 827 



Influence of chemical fertiUzers on the composition of the cereals 827 



Statistics on the production of cereals and legumes, 1916 827 



Growth of the root system of Medicago saliva, Shistovskij 827 



The effect of phosphorus on alfalfa and alfalfa bacteria, Truesdell 828 



A semiannual cropping system for bean lands, Hendry 829 



Determining the germinating capacity in beet seed, Vitek 829 



Influence of low temperatures on germination of beet seeds. Urban and Vitek. 829 



Boiling buffalo clover seed, McNair 829 



An interesting seed com experiment, Hughes 830 



Classification of American Upland cotton, Earle and Taylor 830 



Cotton production in the Belgian Kongo, Janssens 830 



The development of cotton culture in French West Africa, Barois 830 



The opportimities for cotton production in the French colonies, Dybowski 830 



Hemp culture in France, BUn 830 



The resources of Indo-China in oleaginous plants, Brenier 830 



Growing potatoes under irrigation for profit, Stuart 830 



Notes and observations on the cultm-e of ramie, Hautef euille 830 



Rice in Argentina, Girola 830 



New rice varieties, MarcarelU 831 



Sweet clover (Mehlotus ) , Fulmer 831 



Fertilizing the wheat crop, Thorne 831 



Acid phosphate versus raw phosphate rock for wheat, Williams 831 



Adzuki beans and jimson weeds and Mendel's law, Blakeslee and Avery 831 



The Canadian Seed Growers' Association and its work 831 



Determining impurity of cereals caused by Agrostemma giikago, ijnata 831 



HORTICULTURE. 



[Horticultural investigations at the Troup substation], Hotchkiss 832 



Report of horticultural experiment station, Vineland, Ont., 1906-1915 832 



Plant breeding at the horticultural experiment station, Vineland, Palmer 832 



[Vegetables at Wisley, 1915-16] 832 



