This journal provides immediate access to some articles. Volume 17(3); July 1942 Articles THE PREPARATION AND ABSORPTION SPECTRA OF FIVE PURE CAROTENOID PIGMENTS PMCID: PMC438021 EFFECT OF SALINE SUBSTRATE ON HOURLY LEVELS OF CARBOHYDRATES AND INORGANIC CONSTITUENTS OF BARLEY PLANTS PMCID: PMC438023 WEEKLY ABSORPTION OF NITRATE BY YOUNG, BEARING ORANGE TREES GROWING OUT OF DOORS IN SOLUTION CULTURES PMCID: PMC438025 SOME EFFECTS OF RADIANT ENERGY IN RELATION TO ETIOLATION PMCID: PMC438027 THE CULTURE OF ALBINO MAIZE PMCID: PMC438031 ABSORPTION AND ACCUMULATION OF RUBIDIUM BROMIDE BY BARLEY PLANTS. LOCALIZATION IN THE ROOT OF CATION ACCUMULATION AND OF TRANSFER TO THE SHOOT PMCID: PMC438033 SULPHUR CONTENT OF SEEDS AND SEED WEIGHT IN RELATION TO EFFECTS OF SULPHUR DEFICIENCY ON GROWTH OF SUNFLOWER PLANTS PMCID: PMC438036 EFFECT OF ORCHARD FERTILIZER APPLICATIONS ON THE COMPOSITION OF APPLES PMCID: PMC438038 PHOSPHORUS ANALYSIS OF PLANT MATERIAL PMCID: PMC438039 ROOT MODIFICATIONS INDUCED IN ZEA MAYS SEEDLINGS BY IRRADIATING DRY SEEDS WITH SOFT X-RAYS PMCID: PMC438040 EFFECT OF POTASSIUM IODIDE ON THE ASCORBIC ACID CONTENT AND GROWTH OF TOMATO PLANTS PMCID: PMC438041 PRELIMINARY INVESTIGATION OF THE RHYTHMIC FLUCTUATIONS IN TRANSPIRATION UNDER CONSTANT ENVIRONMENTAL CONDITIONS PMCID: PMC438042 RESPIRATION AND CHEMICAL CHANGES OF THE PAPAYA FRUIT IN RELATION TO TEMPERATURE PMCID: PMC438043 EFFECT OF DROUGHT ON THE PRODUCTION OF PLANT PIGMENTS PMCID: PMC438044 A GRATING SPECTROGRAPH FOR MINERAL NUTRITION STUDIES PMCID: PMC438045 Brief Papers: AN ATMOSPHERIC HALATOMETER PMCID: PMC438046 EFFECT OF INFECTING CARROT PLANTS WITH CERTAIN VIRUSES ON SEEDSTALK DEVELOPMENT PMCID: PMC438047 Note NOTES PMCID: PMC438048 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||