CONTENTS. in 



Page. 



Proposed substitutes for Stassfurt potash saltB, Sodorbaum 724 



The fertilizing value of phonolite, A\'agncr 724 



On the composition of giant kelps, Merz 724 



Liming of soils, Forsberg 724 



The g>'psum and salt of Oklahoma, Snider 724 



Goelogy of the salt and gypsum deposits of southwestern Virginia, Stose 724 



AGRICULTURAL BOTANY. 



Life processes in resting plants, I, Miiller-Thurgau and 8chnoider-Orelli 725 



Life processes in resting plants, II, Miiller-Thurgau and Schncider-Orelli 725 



Experiments on shortening the vegetative period , Pa tor 725 



Relation of seed size to general development and anatomy of plants, Delassus. 725 



Influence of temperature on phototropism in Avena saliva seedlings, De Vries. . 725 



Phvllotaxis and distribution of the rate of growth in tlie stem. Van Burkoni. . 725 



Relative transpiration in rain-forest and desert plants, JShreve 726 



Relation of transpiration of white pine seedlings to evaporation, Bums 726 



Transpiration of Silphium laciniatum , Giddings 726 



Effect of surface films and dusts on transpiration, Duggar and Cooley 726 



Relation of certain grass-green algse to elementary nitrogen, Schramm 727 



Metabolism of the nitrogen in AspergUlus nigcr, ^^'atprman 727 



Met;ib()lism of the phosphonis in Aspergillus niger, AVatcrman 727 



Potassium, sulphur, and magnesium in Aspergillus niger metabolism. Waterman . 727 



Influence of iron in development of barley and nature of its action, Wolff 728 



The catalytic action of iron in the development of barley, Wolff 728 



Influence of salts common in alkali soils on the rice plant, V. Miyake 728 



Antitoxic action of chloral hydrate on copper sulphate, Ilibbard 728 



Influence of etherization on enzymatic activities of bulbs and tubers, McCool. 728 



Isolation and identification of enzyms of Fucus vesiculosus, Duggar and DaAds. . 728 



Recent cytological studies on formation of anthocyanin pigments, Guilliermond . 729 



Production of anthocyanin identical with that in autumn leaves, Combes 729 



Transformation of pigment of red autumn leaves into yellow. Combes 729 



Growth stiinulation by Roentgen rays of plant and animal tissues, Schwarz 729 



Variability in a vegetatively pure line of a hermaj)hroditic Mucor, Blakeslee. . 729 



On physiological isolation in t>T)es of the genus Xanthium. Shull 729 



Segregation of characters in first generation hybrids from QCnothera, Atkinson . 730 



Some correlation phenomena in hydrids, Tammes 730 



Bud variation in Solanum, Heckel and Verne 730 



Symbiosis and tuberization in potato, Magrou 730 



Rejuvenescence of the potato, Sartory, Gratiot, and Thiebaut 730 



Inventory of seeds and plants imported from April 1 to June 30, 1912 730 



FIELD CROPS. 



Report of the Mandalay Agricultural Station, 1911-12, Thompstone 730 



Report of the Agricultural Station, Orai, Jalaun [India], 1912 and 1913 731 



Crop rotation experiments at Gross-Enzersdorf, von Liebenberg de Zsittin 731 



The shooting of winter rye and winter wheat when spring sown, Murinow 732 



The influence of spacing on the development of single plants, Sperling 732 



Plant breeding from the scientific standpoint. Rr-gol 732 



Selection in pure lines, Hagedoorn . 732 



Hybridization of cereal species, Jesenko 733 



A study of mountain forage plants, Broit 733 



Fiber growing in Texas, ilornaday 733 



Experiments in the cultivation of Medicago saliva in Uniguay, Schroder 733 



Berseem ( Trifolium alexandrinum), Calvino 733 



Experiments in electro-culture, Gerlach 733 



Contributions to the studies of castor beans, Iligotard 733 



Com,TenEyck 734 



Seed corn for Kansas, Call 734 



Corn acidity investigations, Besley, Basten, and Duvel 734 



Rhodesian maize, "Walters 734 



Report on cotton cultivation, 1912. DeLoach 734 



Cotton-seed selection for southeast Missouri, Evans 735 



A new forage plant, Stolz 735 



Kapok or cotton silk, Powell 735 



