This journal provides immediate access to some articles. Volume 43(12); December 15, 1957 Article INVARIABLE GENETIC CHANGE IN MAIZE PLANTS HETEROZYGOUS FOR MARBLED ALEURONE PMCID: PMC528591 Biochemistry MUTAGENIC EFFECTS OF HIGH OXYGEN TENSIONS ON ESCHERICHIA COLI PMCID: PMC528581 MOLECULAR STRIAE FROM AN INDANTHRENE DYE PMCID: PMC528583 Botany THE INCORPORATION OF C14-ADENINE AND C14-PHENYLALANINE BY DEVELOPING ROOT-TIP CELLS PMCID: PMC528586 Chemistry THE OPTICAL ROTATORY DISPERSION OF THE α-HELIX PMCID: PMC528589 Genetics SIBLING RECOMBINANTS IN ZYGOTE PEDIGREES OF ESCHERICHIA COLI PMCID: PMC528593 Mathematics CONGRUENCES INVOLVING COMBINATIONS OF THE BERNOULLI AND FIBONACCI NUMBERS PMCID: PMC528595 GENERAL SOLUTION FOR THE STRESSES IN A CURVED MEMBRANE PMCID: PMC528597 Pathology and Bacteriology SOME STATISTICAL OBSERVATIONS ON A CO-OPERATIVE STUDY OF HUMAN PULMONARY PATHOLOGY PMCID: PMC528598 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||