CONTENTS. m 



AGRICULTURAL BOTANY. 



Page. 



Relative water requirements of plants, Briggs and Shantz 127 



Evaporation and soil moisture in relation to plant associations, Fuller 128 



Branch development in a perennial plant, Andre 128 



Rapidity of hydrolysis in leaves, Andre 128 



Relative chemotropic influence of salts of metals on Lupinus albus, Porodko. . 128 



Conditions of chemotropism in rootlets, Porodko 128 



Zinc in glass as source of error in studying influence of chemicals, JavilUer 128 



The mobility of potassium in vegetable tissue, Maquenne and Demoussy 129 



The function of manganese in plants, Kelley 129 



The mechanism of oxidation and reduction in vegetable tissues, Wolff 129 



Influence of vertical illumination on coleoptile of Avena saliva, Vogt 129 



Study of rest period in potato tubers, Appleman 129 



Enzymatic peptolysis in germinating seeds. Court 130 



Blooming of rice and associated phenomena, Akemine 130 



Studies on the lactiferous tubes and cells of some native plants, Koketsu 130 



Genetic studies on seeds of Fhaseolus vulgaris, Kajanus 130 



Studies in selection and crossing in mottled horse beans, Kiessling 130 



Utilization of crossing for study of phylogenetic questions, von Tschermak 131 



Parallel mutations of Q^^nothera biennis, Stomps 131 



Anomalies of development in maize, Bohutinsky 131 



FIELD CROPS. 



Agriculture, Dominguez 131 



Intensive farming in India, Kenny 131 



Experimental work on tillage and cropping methods, Scudder 131 



Fertility and crop experiments at '\\'est Tennessee Station, Mooers and Robert. 132 



Variety tests on moor, marsh, and flooded soils, Briine 132 



A text-book of grasses, with special reference to United States, Hitchcock 133 



Alfalfa experiments. Carrier et al 133 



The cultivation of Turkestan alfalfa, Gydrfas 133 



A more accurate method of comparing maize hybrids with their parents, Collins 133 



Endosperm texture in sweet X waxy hybrids of maize, Collins and Kempton. . 134 



Corn growing in Montana, Wilson 134 



Labor cost of producing corn in Ohio, Goddard and Elser 135 



Impro'V'ing cotton by seed selection on the farm. Winters 135 



Flax croj^ping, harvesting methods, Bolley and Wilson 135 



Flax experiments, 1912 136 



Sweet jowar as a source of commercial sugar or fodder, Annett 136 



Potato growing in the San Joaquin and Sacramento deltas of California, Shear. . 136 



Rape for hog pasture, Williams 136 



Experimental work of the rice stations in 1913 in Valencia, Spain, Montesoro. . 136 



Sugar beet experiments 136 



Summary of 10 years' experiments with tobacco in Virginia, Mathewson 137 



Experiments with dark tobacco, Anderson 137 



Nicotin as aby-productof tobacco culture, Chuard and Mellet 137 



Wheat in Alabama, Duggar and Cauthen 137 



Wheat and rye of east Siberia, Uglow 138 



On the loss in a stack of unthreshed corn, Russell 138 



Grades of grain, Quinn 138 



Observations on the eradication of woods by use of kainit, Remy and Vasters. . 138 



The use of sodium arsenite for killing weeds, Ince 138 



The plumber's blowlamp as a garden tool, Durham 139 



HORTICULTURE. 



Sap studios with horticultural plants. Chandler 139 



Hotbeds and cold frames, McGinty 140 



Vegetable growing in Colorado, McGinty 140 



Mendelism in melons, Lumsden 140 



Experiments in onion culture, Lloyd 140 



Tomato variety and planting tests, Wliite 141 



Tomato culture, Monroe 141 



Notes on fruit growing in the East Africa Protectorate, Powell 141 



Fruits: Their handling and storage, Hughes 141 



