This journal provides immediate access to some articles. Volume 44(7); July 15, 1958 Biochemistry ENZYMATIC SYNTHESIS OF DEOXYRIBONUCLEIC ACID. III. THE INCORPORATION OF PYRIMIDINE AND PURINE ANALOGUES INTO DEOXYRIBONUCLEIC ACID PMCID: PMC528637 ENZYMATIC SYNTHESIS OF DEOXYRIBONUCLEIC ACID. IV. LINKAGE OF SINGLE DEOXYNUCLEOTIDES TO THE DEOXYNUCLEOSIDE ENDS OF DEOXYRIBONUCLEIC ACID PMCID: PMC528638 MOLECULAR INTERACTION OF ISOALLOXAZINE DERIVATIVES PMCID: PMC528640 Chemistry SIGNIFICANT STRUCTURES IN THE LIQUID STATE. I PMCID: PMC528643 Genetics THE REPLICATION OF DNA IN ESCHERICHIA COLI PMCID: PMC528642 OCCURRENCE OF CHROMOSOMAL ABERRATIONS IN PRE-SPERMATOCYTIC CELLS OF IRRADIATED MALE MICE PMCID: PMC528644 EPIGENETIC CONTROL SYSTEMS PMCID: PMC528649 Mathematics SPACES FOR WHICH THE RICCI SCALAR R IS EQUAL TO ZERO PMCID: PMC528645 ON THE OPERATIONAL CALCULUS WITH DIFFERENTIABLE FUNCTIONS PMCID: PMC528646 National Academy of Sciences NATIONAL ACADEMY OF SCIENCES: July 1, 1958 PMCID: PMC528652 Pathology and Microbiology PRODUCTION, REPRODUCTION, AND REVERSION OF PROTOPLAST-LIKE STRUCTURES IN THE OSMOTIC STRAIN OF NEUROSPORA CRASSA PMCID: PMC528641 CYTOLOGICAL AND CYTOCHEMICAL CHANGES IN LIVERS OF WHITE MICE FOLLOWING INTRAPERITONEAL INJECTIONS OF DNA PREPARATIONS FROM BREAST CANCERS OF AGOUTI C3H MICE PMCID: PMC528647 Physiology VITAMIN A DEFICIENCY AND NIGHT BLINDNESS PMCID: PMC528639 A MECHANISM OF CELLULAR THERMOGENESIS IN COLD-ADAPTATION PMCID: PMC528648 Corrections STIMULATION OR INHIBITION OF VIRUS OF INFECTED AND INSECT-GALL TISSUES AND SINGLE-CELL CLONES PMCID: PMC528650 Corrects: Stimulation or Inhibition of Virus of Infected and Insect-Gall Tissues and Single-Cell Clones. Proc Natl Acad Sci U S A. 1958 April; 44(4): 354–363. NOMENCLATURE OF THE ACTINOMYCINS PMCID: PMC528651 Corrects: NOMENCLATURE OF THE ACTINOMYCINS. Proc Natl Acad Sci U S A. 1958 June; 44(6): 602–612. Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||