This journal provides immediate access to some articles. Volume 12(4); October 1937 Articles PLANT PHYSIOLOGY IN THE U.S.S.R PMCID: PMC439346 ASSIMILATION OF AMMONIUM AND NITRATE NITROGEN FROM SOLUTION CULTURES BY ROOTS OF PANDANUS VEITCHI HORT., AND DISTRIBUTION OF THE VARIOUS NITROGEN FRACTIONS AND SUGARS IN THE STELE AND CORTEX PMCID: PMC439347 EFFECT OF ENVIRONMENTAL FACTORS UPON THE COLOR OF THE TOMATO AND THE WATERMELON PMCID: PMC439348 EFFECTS OF IONIZED AIR AND OZONE ON PLANTS PMCID: PMC439349 INTENSITY OF REMOVAL OF CATIONS FROM COTTON, CORN, AND SOY BEAN TISSUE BY FRACTIONAL ELECTRODIALYSIS PMCID: PMC439350 LEAF TEMPERATURES OF SUGAR CANE PMCID: PMC439351 THE QUANTITY OF ETHYLENE PRESENT IN APPLES PMCID: PMC439355 A TEACHERS' FORUM PMCID: PMC439356 Brief Papers: SEASONAL VARIATION IN ELONGATION OF YOUNG SEEDLING RADICLES PMCID: PMC439352 APPLICATION OF THE CHLORATE METHOD FOR DETERMINING NITROGEN TO LIGHT, FLUFFY MATERIALS PMCID: PMC439353 CHLOROPHYL IN SULTANINA GRAPES AND RAISINS PMCID: PMC439354 Note NOTES PMCID: PMC439357 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||