This journal provides immediate access to some articles. Volume 16(12); December 15, 1930 Botany BIOTIC CEMENTATION IN CORAL REEFS PMCID: PMC544329 Chemistry THE AMMONIA DISCHARGE TUBE PMCID: PMC544334 THE SEPARATION OF THE TWO TYPES OF IODINE MOLECULE AND THE PHOTOCHEMICAL REACTION OF GASEOUS IODINE WITH HEXENE PMCID: PMC544335 NOTE ON THE EQUATION OF STATE EXPLICIT IN THE VOLUME PMCID: PMC544336 Genetics THE QUANTITATIVE THEORY OF SEX AND THE GENETIC CHARACTER OF HAPLOID MALES PMCID: PMC544330 A CYTOLOGICAL DEMONSTRATION OF THE LOCATION OF AN INTERCHANGE BETWEEN TWO NON-HOMOLOGOUS CHROMOSOMES OF ZEA MAYS PMCID: PMC544331 THE INHERITANCE OF RUBRICALYX BUD COLOR IN CROSSES WITH OENOTHERA LAMARCKIANA PMCID: PMC544332 COMPLETE ELIMINATION OF SELF-STERILITY IN THE ASCIDIAN STYELA BY FERTILIZING IN ALKALINE SOLUTIONS PMCID: PMC544333 Mathematics A STUDY OF INDEFINITELY DIFFERENTIABLE AND QUASI-ANALYTIC FUNCTIONS PMCID: PMC544339 ON THE UNIFIED FIELD THEORY. II PMCID: PMC544340 Physics ON THE INTENSITY OF TOTAL SCATTERING OF X-RAYS BY MONATOMIC GASES PMCID: PMC544337 IRROTATIONAL MOTION OF A COMPRESSIBLE INVISCID FLUID PMCID: PMC544338 Journal Matter Administrative content — journal masthead, notices, indexes, etc. | ||