This journal provides immediate access to some articles. Volume 45(3); March 1959 Biochemistry THE CHEMICAL NATURE OF THE RNA-AMINO ACID COMPOUND FORMED BY AMINO ACID-ACTIVATING ENZYMES PMCID: PMC222559 A PROCEDURE FOR DETECTING CARRIERS OF GALACTOSEMIA PMCID: PMC222560 THE SEDIMENTATION PROPERTIES OF THE LARGE SUBUNIT OF DNA RELEASED FROM LABELED T4 BACTERIOPHAGE PMCID: PMC222561 Botany THE PHYSIOLOGY OF ETHYLENE FORMATION IN APPLES PMCID: PMC222562 PHOTOCONTROL OF PLANT DEVELOPMENT BY THE SIMULTANEOUS EXCITATIONS OF TWO INTERCONVERTIBLE PIGMENTS PMCID: PMC222563 Geophysics EXTENSIVE DEEP SEA SUB-BOTTOM REFLECTIONS IDENTIFIED AS WHITE ASH PMCID: PMC222564 SIGNIFICANCE OF THE WORZEL DEEP SEA ASH PMCID: PMC222565 Mathematics ON THE NUMBER OF IRREDUCIBLE CHARACTERS OF FINITE GROUPS IN A GIVEN BLOCK PMCID: PMC222566 ESTIMATES AND EXISTENCE THEOREMS FOR ELLIPTIC BOUNDARY VALUE PROBLEMS PMCID: PMC222567 ON THE HOMOLOGY AND HOMOTOPY DECOMPOSITION OF CONTINUOUS MAPS PMCID: PMC222568 A CHARACTERIZATION OF BIRTH AND DEATH PROCESSES PMCID: PMC222569 Microbiology EVIDENCE FOR THE SORTING OUT OF CELLS IN THE DEVELOPMENT OF THE CELLULAR SLIME MOLDS PMCID: PMC222570 AN INHIBITOR OF VIRAL ACTIVITY APPEARING IN INFECTED CELL CULTURES PMCID: PMC222571 Pathology SOME STATISTICAL OBSERVATIONS ON A COOPERATIVE STUDY OF HUMAN PULMONARY PATHOLOGY. II PMCID: PMC222572 Physics BROKEN BOTTLENECKS AND THE FUTURE OF MOLECULAR QUANTUM MECHANICS PMCID: PMC222573 THE HISTORY OF DOUBLE SCATTERING OF ELECTRONS AND EVIDENCE FOR THE POLARIZATION OF BETA RAYS PMCID: PMC222574 Physiology SECRETION AND REABSORPTION IN SWEAT GLANDS PMCID: PMC222575 AVERAGE BEHAVIOR OF SWEAT GLANDS AS INDICATED BY IMPEDANCE CHANGES PMCID: PMC222576 Psychology THE AUDITORY SENSITIVITY OF ORTHOPTERA PMCID: PMC222577 Symposia CHAIRMAN'S INTRODUCTION PMCID: PMC222553 ULTRACENTRIFUGAL FRACTIONATION AND IRON DISTRIBUTION IN INFECTIOUS NUCLEATES FROM TOBACCO MOSAIC VIRUS PMCID: PMC222554 THE ARRANGEMENT OF PURINE AND PYRIMIDINE NUCLEOTIDES IN TOBACCO MOSAIC VIRUS NUCLEIC ACID PMCID: PMC222555 OBSERVATIONS ON THE BIOLOGICAL BEHAVIOR OF TOBACCO MOSAIC VIRUS NUCLEIC ACID PMCID: PMC222556 BIOPHYSICAL STUDIES OF INFECTIOUS RIBONUCLEIC ACID FROM TOBACCO MOSAIC VIRUS PMCID: PMC222557 TWO CONFIGURATIONS OF TOBACCO MOSAIC VIRUS-RIBONUCLEIC ACID PMCID: PMC222558 Zoölogy DROSOPHILA PAULISTORUM, A CLUSTER OF SPECIES IN STATU NASCENDI PMCID: PMC222578 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||