This journal provides immediate access to some articles. Volume 16(9); September 15, 1930 Biology THE ARCHITECTURE OF LIVING CELLS—RECENT ADVANCES IN METHODS OF BIOLOGICAL RESEARCH—OPTICAL SECTIONING WITH THE ULTRA-VIOLET MICROSCOPE PMCID: PMC526698 Chemistry CLAUDE BERNARD'S THEORY OF NARCOSIS PMCID: PMC526694 THE STRUCTURE OF THE CHLORITES PMCID: PMC526695 Mathematics ON THE SUMMABILITY OF FOURIER SERIES. THIRD NOTE PMCID: PMC526697 A FUNDAMENTAL THEOREM ON ONE-PARAMETER CONTINUOUS GROUPS OF PROJECTIVE FUNCTIONAL TRANSFORMATIONS PMCID: PMC526699 A SPECIAL TYPE OF UPPER SEMI-CONTINUOUS COLLECTION PMCID: PMC526700 ON EXPANSIONS OF ARITHMETICAL FUNCTIONS PMCID: PMC526701 QUADRATIC FUNCTIONAL FORMS IN A COMPOSITE RANGE PMCID: PMC526702 THE MIXED PROBLEM FOR LAPLACE'S EQUATION IN THE PLANE DISCONTINUOUS BOUNDARY VALUES PMCID: PMC526703 Physics DISCUSSION OF VARIOUS TREATMENTS WHICH HAVE BEEN GIVEN TO THE NON-STATIC LINE ELEMENT FOR THE UNIVERSE PMCID: PMC526696 Physiology and Pathology ON THE FREE ENERGY OF GLUCOSE AND OF TRIPALMITIN PMCID: PMC526693 Zoölogy THE RÔLE OF CHEMICAL STIMULATION IN THE SPAWNING REACTIONS OF OSTREA VIRGINICA AND OSTREA GIGAS PMCID: PMC526692 Journal Matter Administrative content — journal masthead, notices, indexes, etc. | ||