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This journal provides immediate access to some articles. Volume 42(9); September 1956 Biochemistry A NERVE GROWTH-STIMULATING FACTOR ISOLATED FROM SNAKE VENOM PMCID: PMC534252 BACTERIAL PROTOPLASTS INDUCED BY PENICILLIN PMCID: PMC534253 HINDERED CIS ISOMERS OF VITAMIN A AND RETINENE: THE STRUCTURE OF THE NEO-b ISOMER PMCID: PMC534254 ON THE SYNTHESIS OF ANTIBODY PROTEIN IN VITRO PMCID: PMC534255 PRODUCTION OF PROTOPLASTS OF ESCHERICHIA COLI BY LYSOZYME TREATMENT PMCID: PMC534256 Chemistry ION ASSOCIATION IN AQUEOUS SOLUTIONS OF 1-1 ELECTROLYTES AT 25° PMCID: PMC534257 THE OPTICAL ROTATORY DISPERSION OF SIMPLE POLYPEPTIDES. I PMCID: PMC534258 Engineering ISOTROPIC MATERIALS WHOSE DEFORMATION AND DISTORTION ENERGIES ARE EXPRESSIBLE BY SCALAR INVARIANTS PMCID: PMC534259 Genetics CYTOLOGICAL DEMONSTRATION OF THE HELICAL STRUCTURE OF GIANT CHROMOSOMES PMCID: PMC534260 HETEROCARYOSIS AND PROTOPLASMIC INCOMPATIBILITY IN NEUROSPORA CRASSA PMCID: PMC534261 THE ORIENTATION AND EXTENT OF GENE TRANSFER IN ESCHERICHIA COLI PMCID: PMC534262 Mathematics A PROPERTY OF SPECIAL JORDAN ALGEBRAS PMCID: PMC534263 ON A CLASS OF FUNCTIONAL EQUATIONS OF MODULAR TYPE PMCID: PMC534264 ON THE PRINCIPLE OF INVARIANT IMBEDDING AND PROPAGATION THROUGH INHOMOGENEOUS MEDIA PMCID: PMC534265 ON MULTIPLICATIVE IDEMPOTENTS OF A POTENT SEMIRING PMCID: PMC534266 GENERALIZED RESOLUTIONS OF THE IDENTITY FOR CLOSED SYMMETRIC ORDINARY DIFFERENTIAL OPERATORS PMCID: PMC534267 CAUCHY'S PROBLEM FOR LINEAR DIFFERENTIAL EQUATIONS WITH CONSTANT COEFFICIENTS PMCID: PMC534268 A UNIFIED THEORY OF GENERAL RELATIVITY OF GRAVITATION AND ELECTROMAGNETISM. II PMCID: PMC534269 SINGULAR INTEGRAL EQUATIONS FOR DIFFERENTIAL FORMS ON RIEMANNIAN MANIFOLDS PMCID: PMC534270 MEASURES OF THE VALUE OF INFORMATION PMCID: PMC534271 DIOPHANTINE EQUATIONS IN CERTAIN RINGS PMCID: PMC534272 Physics A FUNDAMENTAL THEORY OF SUPERCONDUCTIVITY PMCID: PMC534273 CONVERGENT APPROACH TO THE THEORY OF ELEMENTARY PARTICLE INTERACTIONS PMCID: PMC534274 Physiology TEMPERATURE INDEPENDENCE IN A UNICELLULAR “CLOCK” PMCID: PMC534275 INFLUENCE OF PROTEIN AND CALCIUM ADDITIONS TO ALREADY ADEQUATE DIET PMCID: PMC534276 MEASUREMENT OF IMPOSED VOLTAGE GRADIENT ADEQUATE TO MODULATE NEURONAL FIRING PMCID: PMC534277 Zoölogy IN VITRO AND IN VIVO EFFECTS OF A NERVE GROWTH-STIMULATING AGENT ISOLATED FROM SNAKE VENOM PMCID: PMC534278 ON TIME LAGS IN EQUATIONS OF GROWTH PMCID: PMC534279 Erratum COURSE OF PRODUCTION OF AN ISOANTISERUM EFFECTING TUMOR HOMOGRAFT SURVIVAL IN MICE PMCID: PMC534280 Corrects: COURSE OF PRODUCTION OF AN ISOANTISERUM EFFECTING TUMOR HOMOGRAFT SURVIVAL IN MICE. Proc Natl Acad Sci U S A. 1956 May; 42(5): 269–273. Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||
