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This journal provides immediate access to some articles. Volume 4(3); July 1929 Articles ON SOME LIMITING FACTORS IN THE USE OF SATURATED PETROLEUM OILS AS INSECTICIDES PMCID: PMC440063 OPENING OF STOMATA IN DIFFERENT RANGES OF WAVE LENGTHS OF LIGHT PMCID: PMC440064 MECHANISM OF CELL WALL FORMATION PMCID: PMC440065 THE PURE PIGMENTS, CAROTIN AND XANTHOPHYLL, AND THE TSWETT ADSORPTION METHOD PMCID: PMC440066 GROWTH STUDIES ON FRUITS. RESPIRATION OF TOMATO FRUITS PMCID: PMC440067 SOME OBSERVATIONS ON THE MICROCHEMICAL DEMONSTRATION OF PHLORIDZIN PMCID: PMC440068 THE EFFECT OF pH VALUE AND HYDROGEN PEROXIDE CONCENTRATION ON FRUIT OXIDASE ACTIVITY PMCID: PMC440069 TESTING THE SUGAR CONTENT OF BEETS FOR GENETICAL PURPOSES PMCID: PMC440070 EFFECT OF ACID AND ALKALINE HYDROLYSIS ON THE ESTIMATION OF HEMICELLULOSE AND ASSOCIATED GROUPS IN YOUNG APPLE WOOD PMCID: PMC440071 INFLUENCE OF SHAPE ON THE CHEMICAL COMPOSITION OF POTATO TUBERS PMCID: PMC440072 Brief Papers: THE WATER CONTENT OF WHEAT LEAVES AT FLOWERING TIME PMCID: PMC440073 Note NOTES PMCID: PMC440074 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||
