This journal provides immediate access to some articles. Volume 18(4); October 1943 Articles A NEW TYPE OF INTERMITTENTLY-IRRIGATED SAND CULTURE EQUIPMENT PMCID: PMC438128 A BIOCHEMICAL STUDY OF CURING PROCESSES IN SWEET POTATOES PMCID: PMC438129 SOME EFFECTS OF SODIUM SALTS ON THE GROWTH OF THE TOMATO PMCID: PMC438130 STIMULATION OF THE ONION ROOT BY ALTERNATING CURRENT PMCID: PMC438131 QUANTITATIVE MEASUREMENT OF THE VELOCITY OF WATER ABSORPTION IN INDIVIDUAL ROOT HAIRS BY A MICROTECHNIQUE PMCID: PMC438132 EFFECTS OF IRON ON THE GROWTH AND ASH CONSTITUENTS OF ANANAS COMOSUS (L.) MERR PMCID: PMC438133 FLAGELLATES OF LATICIFEROUS PLANTS PMCID: PMC438134 COMPOSITION OF THE ROOTS AND STUBBLE OF PERENNIAL RYEGRASS FOLLOWING PARTIAL DEFOLIATION PMCID: PMC438135 EFFECT OF OXYGEN CONCENTRATION ON THE RESPIRATION OF SOME VEGETABLES PMCID: PMC438136 GERMINATION, GROWTH, AND RESPIRATION OF RICE AND BARLEY SEEDLINGS AT LOW OXYGEN PRESSURES PMCID: PMC438137 FIRMNESS OF STRAWBERRIES AS MEASURED BY A PENETROMETER PMCID: PMC438138 SPECTROGRAPHIC ANALYSIS OF PLANT ASH FOR SEVERAL ELEMENTS SIMULTANEOUSLY PMCID: PMC438139 DECOMPOSITION OF THE LEAVES OF SOME FOREST TREES UNDER FIELD CONDITIONS PMCID: PMC438140 INTERNAL PRECIPITATION OF PHOSPHORUS IN RELATION TO ALUMINUM TOXICITY PMCID: PMC438141 BRIEF PAPERS: PYRROLE DERIVATIVES AND IRON CHLOROSIS IN PLANTS PMCID: PMC438142 LENGTHENING THE STORAGE LIFE OF APPLES BY REMOVAL OF VOLATILE MATERIALS FROM THE STORAGE ATMOSPHERE PMCID: PMC438143 Note NOTES PMCID: PMC438144 Journal Matter Administrative content — journal masthead, notices, indexes, etc. | ||