This journal provides immediate access to some articles. Volume 29(5); September 1954 Articles The Occurrence of Coenzyme A in Plants PMCID: PMC540549 Studies on the Chemistry of the Living Bark of the Black Locust in Relation to its Frost Hardiness. VIII. Possible Enzymatic Processes Involved in Starch-Sucrose Interconversions PMCID: PMC540550 The Interrelation between CO2 Metabolism and Photoperiodism in Kalanchoë. II. Effect of Prolonged Darkness and High Temperatures PMCID: PMC540551 Some Physiological Characteristics of Ascospore Activation in Neurospora crassa PMCID: PMC540552 Effect Of Scald On Apple Skin Respiration PMCID: PMC540553 A Study of Chlorophyll in a White Mutant Strain of Helianthus annuus PMCID: PMC540554 The Dark Fixation of Carbon Dioxide as a Factor in Photoperiodism PMCID: PMC540555 Changes in Free Auxin Content during the Photoinduction of Short-day Plants PMCID: PMC540556 Seasonal and Diurnal Changes in the Water Contents and Water Deficits of Bartlett Pear Leaves PMCID: PMC540557 The Physical Environment of Chloroplasts as Related to their Morphology and Activity in Vitro PMCID: PMC540558 The Terminal Respiratory Enzymes in Neurospora Tetrasperma PMCID: PMC540559 Effect of Light on the Formation of a Pigment in the Tomato Fruit Cuticle PMCID: PMC540560 Photosynthesis in Chlorella during Intermittent Illumination of Long Periodicity PMCID: PMC540561 Phosphorus Nutrition of Soybeans PMCID: PMC540562 News And Notes PMCID: PMC540569 Brief Papers: The Effect of Volatile Substances Released by Soil, Humus, and Composts on the Growth of Excised Roots PMCID: PMC540563 Differences in Survival of Excised Ponderosa Pine Leaves of Various Ages PMCID: PMC540564 Calcium and Magnesium in Citrus Seeds PMCID: PMC540565 The Immediate Effect of Severing on the Photosynthetic Rate of Norway Spruce Branches PMCID: PMC540566 The Influence of 2,4-Dichlorophenoxyacetic Acid on the Phosphorus Metabolism of Cranberry Bean Plants (Phaseolus vulgaris) PMCID: PMC540567 Turbidimetric Determination of Dry Weight of Algae PMCID: PMC540568 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||