This journal provides immediate access to some articles. Volume 21(1); January 1946 Articles IN MEMORIAM: RODNEY BEECHER HARVEY MAY 26, 1890—NOV. 4, 1945 PMCID: PMC437713 CRITERIA OF NUTRITIVE RELATIONS OF FUNGI AND SEED-PLANTS IN MYCORRHIZAE PMCID: PMC437714 GROWTH STIMULATION AND PHOSPHORUS ABSORPTION OF MYCORRHIZAL AND NON-MYCORRHIZAL NORTHERN WHITE PINE AND DOUGLAS FIR SEEDLINGS IN RELATION TO FERTILIZER TREATMENT PMCID: PMC437715 EFFECT OF VARIOUS OXYGEN AND CARBON DIOXIDE CONCENTRATIONS ON COTTON ROOT DEVELOPMENT PMCID: PMC437716 ABSORPTION OF WATER THROUGH SUBERIZED ROOTS OF TREES PMCID: PMC437717 MINERAL REQUIREMENTS OF LEMNA MINOR PMCID: PMC437718 INFLUENCE OF EXTERNAL AND INTERNAL FACTORS ON GROWTH HORMONE IN GREEN PLANTS PMCID: PMC437719 THE LACK OF SCION EFFECT ON ROOT QUALITY OF DERRIS ELLIPTICA PMCID: PMC437720 EFFECT OF AUXINS ON THE ACTION OF DIASTASE IN VITRO PMCID: PMC437721 EFFECTS OF IRON ON CERTAIN NITROGENOUS FRACTIONS OF ANANAS COMOSUS (L.) MERR PMCID: PMC437722 TRANSPIRATION OF PINE SEEDLINGS AS INFLUENCED BY FOLIAGE COATINGS PMCID: PMC437723 AN ELECTROMETRIC METHOD FOR DEFINING THE AREA OF BARK AFFECTED BY TAPPING HEVEA BRASILIENSIS PMCID: PMC437724 Brief Papers: ENTRANCE OF WATER INTO SUBERIZED ROOTS OF TREES PMCID: PMC437725 Note NOTES PMCID: PMC437726 Correction Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||