This journal provides immediate access to some articles. Volume 22(4); October 1947 Articles Distribution of Rubber and Resins in Guayule PMCID: PMC405879 Studies in the Metabolism of Crassulacean Plants: The Diurnal Variation in Organic Acid and Starch Content of Bryophyllum calycinum PMCID: PMC405880 The Physiological Action of 2,4-Dichlorophenoxyacetic Acid on Dandelion, Taraxacum officinale PMCID: PMC405881 Growth of the Dandelion Scape PMCID: PMC405882 Some Effects of Temperature and Photoperiod on Flower Formation and Runner Production in the Strawberry PMCID: PMC405883 Carotenoid Pigments in Tubers of the Katahdin Variety of Irish Potato PMCID: PMC405884 The Sugars of the Roots of Daucus carota PMCID: PMC405885 Respiration and Nitrogen Metabolism of Whole and Sliced Radish Roots with Reference to the Effect of Alternation of Air and Nitrogen Atmospheres PMCID: PMC405886 Nitrogen Metabolism of Detached Corn Leaves in Darkness and in Light PMCID: PMC405887 Studies in the Metabolism of Crassulacean Plants: The Behavior of Excised Leaves of Bryophyllum calycinum During Culture in Water PMCID: PMC405888 Plant Growth with Artificial Sources of Radiant Energy PMCID: PMC405889 The Thermodynamics of Active (Non-osmotic) Water Absorption PMCID: PMC405890 Effect of Alternating Conditions of Boron Nutrition upon Growth and Boron Content of Grape Vines in Sand Culture PMCID: PMC405891 Some Effects of Potassium Deficiency on the Nitrogen Metabolism and Oil Synthesis in the Tung Tree (Aleurites Fordii) PMCID: PMC405892 Vitamin Studies of Varieties and Strains of Peas PMCID: PMC405893 The Effect of Air Supply on Apparent Photosynthesis PMCID: PMC405894 Artificial Parthenocarpy in Lycopersicum esculentum; Tissue Development PMCID: PMC405895 The Porometer Method for the Continuous Estimation of Dimensions of Stomates PMCID: PMC405896 Culture Conditions and the Development of the Photosynthetic Mechanism: V. Influence of the Composition of the Nurient Medium PMCID: PMC405897 A Further Investigation of the Replacement of Boron by Indoleacetic Acid PMCID: PMC405898 Germination of Asystasia gangetica L. Seed with Special Reference to the Effect of Age on the Temperature Requirement for Germination PMCID: PMC405899 The Effect of Ultraviolet Light on Subsequent Ripening of the Fruit of the Tomato (Lycopersicon esculentum) PMCID: PMC405900 Influence of High, Medium, and Low Soil Moisture on Growth and Alkaloid Content of Cinchona ledgeriana PMCID: PMC405901 Distribution of Thiamin and Riboflavin in the Tomato Plant PMCID: PMC405902 The Absorption of Phosphorus and Iron from Nutrient Solutions PMCID: PMC405903 Notes PMCID: PMC405906 Brief Papers: Selectivity of 2,4-D and Sinox When Applied to Soil PMCID: PMC405904 Soluble Solids Content of Different Regions of Watermelons PMCID: PMC405905 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||