This journal provides immediate access to some articles. Volume 47(5); May 1961 Biochemistry CARBON ISOTOPE FRACTIONATION IN FORMATION OF AMINO ACIDS BY PHOTOSYNTHETIC ORGANISMS PMCID: PMC221413 ON THE INACTIVATION OF TRANSFORMING DNA BY TEMPERATURES BELOW THE MELTING POINT PMCID: PMC221415 MECHANISMS OF INACTIVATION OF DEOXYRIBONUCLEIC ACIDS BY HEAT PMCID: PMC221417 SELECTIVE HEAT INACTIVATION OF PNEUMOCOCCAL TRANSFORMING DEOXYRIBONUCLEATE PMCID: PMC221419 DEOXYRIBONUCLEIC ACID-DEPENDENT INCORPORATION OF NUCLEOTIDES FROM NUCLEOSIDE TRIPHOSPHATES INTO RIBONUCLEIC ACID PMCID: PMC221421 ON THE MECHANISM OF INHIBITION OF DEOXYRIBONUCLEIC ACID SYNTHESIS IN EHRLICH ASCITES TUMOR CELLS BY DEOXYADENOSINE IN VITRO PMCID: PMC221423 RELATION BETWEEN RNA, DNA, AND PROTEIN SYNTHESES IN THE REPLICATING NUCLEUS OF EUPLOTES PMCID: PMC221424 ON THE PARTICIPATION OF DNA IN RNA BIOSYNTHESIS PMCID: PMC221426 Chemistry FURAZAN OXIDES, I. THE STRUCTURE OF BENZOFURAZAN OXIDE PMCID: PMC221427 A CHEMICAL SYNTHESIS OF ISOMALTOSE PMCID: PMC221428 Engineering A MATHEMATICAL AID IN OPTIMIZING ENGINEERING DESIGNS, II PMCID: PMC221430 Mathematics A CHARACTERIZATION OF ABELIAN ηα-GROUPS IN TERMS OF THEIR NATURAL VALUATION PMCID: PMC221432 Microbiology INTERCELLULAR TRANSFER OF GAMMA-1 AND GAMMA-2 FORSSMAN HEMOLYSINS PMCID: PMC221434 Physics NEGATIVE ENTROPY AND PHOTOSYNTHESIS PMCID: PMC221436 REMARKS ON LORENTZ CONTRACTION PMCID: PMC221437 Physiology THE THERMOSTATIC CONTROL OF HUMAN METABOLIC HEAT PRODUCTION PMCID: PMC221439 COCHLEAR POTENTIALS IN THE MARMOSET PMCID: PMC221441 Corrections A Bacteriophage Containing RNA PMCID: PMC221442 Corrects: TRANSCARBOXYLASE, II. PURIFICATION AND PROPERTIES OF METHYLMALONYL-OXALOACETIC TRANSCARBOXYLASE. Proc Natl Acad Sci U S A. 1961 March; 47(3): 289–303. Comparison of Theoretical with Observed Values of the Periods of Free Oscillation of the Earth PMCID: PMC221443 Corrects: COMPARISON OF THEORETICAL WITH OBSERVED VALUES OF THE PERIODS OF FREE OSCILLATION OF THE EARTH. Proc Natl Acad Sci U S A. 1961 January; 47(1): 91–98. Population Studies in Predominantly Self-Pollinated Species, I. Evidence for Heterozygote Advantage in a Closed Population of Barley PMCID: PMC221444 Corrects: POPULATION STUDIES IN PREDOMINANTLY SELF-POLLINATED SPECIES, I. EVIDENCE FOR HETEROZYGOTE ADVANTAGE IN A CLOSED POPULATION OF BARLEY. Proc Natl Acad Sci U S A. 1960 October; 46(10): 1371–1377. Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||