CONTENTS. m 



AGRICULTURAL BOTANY. 



Page. 



Spore conditions in hybrids and the mutation hypothesis of De Vries, Jeffrey. . 823 



Some wild tuberiferous Solaniims, Wittmack 824 



Relationship between weight of seed planted and plant produced, II, Harris. . 824 



Vitality of seeds in soil periodically cultivated. Munerati and Zapparoli 824 



Effects of disinfectants on germinaoility of grain, Frassi 824 



Delayed germination in seed of Alisma plantago, Crocker and Davis 824 



Vegetation experiments on the evaporation of pine seedUngs, Tol'skii 824 



Effects of surface films on the rate of transpiration, Duggar and Cooley 825 



On the formation of hydrocyanic acid in plants, Jorissen 826 



The oxidases of acid tissues. Reed 826 



Some accessory factors in plant growth and nutrition, Bottomley 826 



Bioreactions of tellurium in vegetable physiology and pathology, Pollacci 826 



The effect of the soot in smoke on vegetation, Clevenger 826 



Effects of tarring roads on neighboring plants and remedies therefor, Gatin 827 



Bacterial digestion of fiber or cellulose 827 



Influence of soil bacteria on plant growth 827 



The respiration of denitrifying micro-organisms, Lebedev 827 



The relation of certain grass-green algse to elementary nitrogen, Schramm 827 



Indications regarding the source of combined nitrogen for Ulva lactuca, Foster. 828 



Concerning a plurality of starches, Tam'et 828 



FIELD CROPS. 



The work of the Huntley reclamation project experimeut farm in 1913, Hansen 828 



Work of Truckee-Carson reclamation project experiment farm in 1913, Headley 829 



Forage and silage crops for Oklahoma, Churchill 829 



Grains and forage crops 829 



Yields per acre of different classes of farm crops, Zavitz 829 



[Field crop experiments], Smith 829 



[Manurial, variety , and cultural experiments], Gilchrist 829 



Field experiments, 1913 829 



Plant breeding in Sweden, Nilsson 830 



A study of root systems of plants in pure and in mixed seedings, Kraus 830 



Inoculation of legumes with special reference to high moorland, Densch 830 



Proceedings of the seventy -second meeting of the Central Moor Commission 830 



Cultivation and management of moorland pastures and meadovv's, Fleischer 830 



The seeding of meadows and pastures, Hutchison 830 



The favorable depth for grass seed, Richter 830 



Study on the ancient classification of cereals, Cotte 830 



Application of a new method in variety tests of cereals, von Riimker et al 830 



Alfalfa 831 



Alfalfa hybridization, Southworth 831 



The farmers' alfalfa guide, Boyd 831 



Buckwheat, Mundy - 831 



The effect of soil conditions on the tassels of maize, Harris 831 



Tests made with nitrate fertilizers on maize. Dudgeon 831 



Maize culture, McDonald 831 



Mechanical cotton plants. Balls 831 



"BoUy cotton " 832 



The work of the British Cotton Growing Association, Hutton 832 



Cowpeas and soy beans, Nelson, Wiancko, Fisher, Cromer, and Wright 832 



Esparto industry in Almeria Province, Yost 832 



Guinea grass, Jacobson 832 



Sexual studies of the hop plant, Tournois 832 



Kafir score card, Wright 832 



Studies on oat breeding. — I, Variety tests, 1910-1913, Surface and Barber 832 



Peanuts (Arachis hypogea), Gii'ola 833 



Ecological evidence of the original habitat of the Irish potato, Fitch 833 



Observations on a bastard type of the Pearl potato. Fitch 833 



Results of change of seed potatoes on moorlands 833 



Sodium nitrate and ammonium sulphate on potatoes and sugar beets, Mausberg 833 



Influence of transplanting in the cultivation of rice 834 



The culture and preparation of rice in Italy 834 



Rice, Granato 834 



Disintegration of rice grains by means of alkali, Warth and Darabsett 834 



