Table of Contents

• L. Brillouin

THE ACTUAL MASS OF POTENTIAL ENERGY, A CORRECTION TO CLASSICAL RELATIVITY

• Theodosius Dobzhansky,
• Boris Spassky,
• and Wyatt Anderson

BICHROMOSOMAL SYNTHETIC SEMILETHALS IN DROSOPHILA PSEUDOOBSCURA

• Michael Fried

CELL-TRANSFORMING ABILITY OF A TEMPERATURE-SENSITIVE MUTANT OF POLYOMA VIRUS

• Cecilie Leuchtenberger,
• Rudolf Leuchtenberger,
• Theodor Brunner,
• Dorothy Norlin,
• and Sylvia Weiss

TRANSFORMATION INDUCED BY PR 8 INFLUENZA VIRUS IN PRIMARY CULTURES OF MOUSE KIDNEY AND BRONCHUS, AND PRODUCTION OF MALIGNANT KIDNEY TUMORS IN MICE BY SUBCULTURES

• Witold M. Bogdanowicz

A GENERALIZATION OF THE LEBESGUE-BOCHNER-STIELTJES INTEGRAL AND A NEW APPROACH TO THE THEORY OF INTEGRATION

• Kenneth Krohn
• and John Rhodes

RESULTS ON FINITE SEMIGROUPS DERIVED FROM THE ALGEBRAIC THEORY OF MACHINES

• K. R. Meyer

LIAPUNOV FUNCTIONS FOR THE PROBLEM OF LUR'E

• Zvonimir Janko

A NEW FINITE SIMPLE GROUP WITH ABELIAN 2-SYLOW SUBGROUPS

• Tzee-Char Kuo

A FAMILY OF SPECTRAL OPERATIONS

• H. L. Resnikoff

A DIFFERENTIAL EQUATION FOR THE THETA FUNCTION

• Alberto J. Solari

STRUCTURE OF THE CHROMATIN IN SEA URCHIN SPERM

• Hans Laufer
• and Yasukiyo Nakase

SALIVARY GLAND SECRETION AND ITS RELATION TO CHROMOSOMAL PUFFING IN THE DIPTERAN, CHIRONOMUS THUMMI

• Wen-Tah Hsu,
• John W. Moohr,
• and Samuel B. Weiss

THE INFLUENCE OF POLYCYCLIC AROMATIC HYDROCARBONS ON BACTERIOPHAGE DEVELOPMENT

• Philip L. Whitney
• and Charles Tanford

RECOVERY OF SPECIFIC ACTIVITY AFTER COMPLETE UNFOLDING AND REDUCTION OF AN ANTIBODY FRAGMENT

• W. A. Bulen,
• R. C. Burns,
• and J. R. LeComte

NITROGEN FIXATION: HYDROSULFITE AS ELECTRON DONOR WITH CELL-FREE PREPARATIONS OF AZOTOBACTER VINELANDII AND RHODOSPIRILLUM RUBRUM

• Lia Eidlic
• and Frederick C. Neidhardt

ROLE OF VALYL-sRNA SYNTHETASE IN ENZYME REPRESSION

• John Robert Penswick
• and Robert W. Holley

SPECIFIC CLEAVAGE OF THE YEAST ALANINE RNA INTO TWO LARGE FRAGMENTS

• Jean Apgar,
• George A. Everett,
• and Robert W. Holley

ISOLATION OF LARGE OLIGONUCLEOTIDE FRAGMENTS FROM THE ALANINE RNA

• Robert A. Lazzarini
• and Alan Peterkofsky

THE CHARACTERIZATION OF A NEW SPECIES OF LEUCYL-sRNA FORMED DURING METHIONINE DEPRIVATION OF ESCHERICHIA COLI WITH RELAXED CONTROL

• R. W. Albers,
• Georgina Rodriguez De Lores Arnaiz,
• and E. De Robertis

SODIUM-POTASSIUM-ACTIVATED ATPase AND POTASSIUM-ACTIVATED p-NITROPHENYLPHOSPHATASE: A COMPARISON OF THEIR SUBCELLULAR LOCALIZATIONS IN RAT BRAIN

• Evangelos N. Moudrianakis
• and Michael Beer

BASE SEQUENCE DETERMINATION IN NUCLEIC ACIDS WITH THE ELECTRON MICROSCOPE, III. CHEMISTRY AND MICROSCOPY OF GUANINE-LABELED DNA

• Marian Hierowski

INHIBITION OF PROTEIN SYNTHESIS BY CHLORTETRACYCLINE IN THE E. COLI IN VITRO SYSTEM

• William W. Parson
• and Harry Rudney

AN INTERMEDIATE IN THE CONVERSION OF p-HYDROXYBENZOATE-U-C¹⁴ TO UBIQUINONE IN RHODOSPIRILLUM RUBRUM

• K. K. Reddi
• and LJ. Mauser

STUDIES ON THE FORMATION OF TOBACCO MOSAIC VIRUS RIBONUCLEIC ACID, VI. MODE OF DEGRADATION OF HOST RIBONUCLEIC ACID TO RIBONUCLEOSIDES AND THEIR CONVERSION TO RIBONUCLEOSIDE 5′-PHOSPHATES

• Isaac J. Bekhor
• and Lucien A. Bavetta

ACTINOMYCIN D INHIBITION OF MICROSOMAL-BOUND HYDROXYPROLINE FORMATION IN RABBIT EMBRYO SKIN IN VITRO

• M. Clelia Ganoza,
• Curtis A. Williams,
• and Fritz Lipmann

SYNTHESIS OF SERUM PROTEINS BY A CELL-FREE SYSTEM FROM RAT LIVER

• Curtis A. Williams,
• Clélia M. Ganoza,
• and Fritz Lipmann

EFFECT OF BACTERIAL INFECTION ON THE SYNTHESIS OF SERUM PROTEINS BY A MOUSE LIVER CELL-FREE SYSTEM

• Ming C. Liau,
• Lubomir S. Hnilica,
• and Robert B. Hurlbert

REGULATION OF RNA SYNTHESIS IN ISOLATED NUCLEOLI BY HISTONES AND NUCLEOLAR PROTEINS

• Donald C. Borg

TRANSIENT FREE RADICAL FORMS OF HORMONES: EPR SPECTRA FROM CATECHOLAMINES AND ADRENOCHROME

• Sidney Pestka,
• Richard Marshall,
• and Marshall Nirenberg

RNA CODEWORDS AND PROTEIN SYNTHESIS, V. EFFECT OF STREPTOMYCIN ON THE FORMATION OF RIBOSOME-sRNA COMPLEXES

• Semih Erhan,
• Lulla G. Northrup,
• and Franklin R. Leach

A METHOD POTENTIALLY USEFUL FOR ESTABLISHING BASE SEQUENCES IN CODEWORDS

• Charles Weissmann,
• Martin A. Billeter,
• Morton C. Schneider,
• C. A. Knight,
• and Severo Ochoa

REPLICATION OF VIRAL RNA, VI. NUCLEOTIDE COMPOSITION OF THE REPLICATIVE FORM OF TOBACCO MOSAIC VIRUS RNA AND OF ITS COMPONENT STRANDS

• Darwin J. Prockop
• and Kale Juva

SYNTHESIS OF HYDROXYPROLINE IN VITRO BY THE HYDROXYLATION OF PROLINE IN A PRECURSOR OF COLLAGEN

• Eric F. Eikenberry
• and Alexander Rich

THE DIRECTION OF READING MESSENGER RNA DURING PROTEIN SYNTHESIS

• David Givol,
• Francesco De Lorenzo,
• Robert F. Goldberger,
• and Christian B. Anfinsen

DISULFIDE INTERCHANGE AND THE THREE-DIMENSIONAL STRUCTURE OF PROTEINS

• J. C. Ogoniak
• and P. N. Sawyer

THE ELECTROCHEMICAL PRECIPITATION OF FIBRINOGEN

• W. H. Flygare
• and J. T. Lowe

NUCLEAR QUADRUPOLE AND SPIN-ROTATION INTERACTION OF O¹⁷ IN FORMALDEHYDE

• David A. Schooley,
• Edward Bunnenberg,
• and Carl Djerassi

MAGNETIC CIRCULAR DICHROISM STUDIES: A PRELIMINARY REPORT

• Gunther L. Eichhorn
• and Patricia Clark

INTERACTIONS OF METAL IONS WITH POLYNUCLEOTIDES AND RELATED COMPOUNDS, V. THE UNWINDING AND REWINDING OF DNA STRANDS UNDER THE INFLUENCE OF COPPER (II) IONS

• R. V. Gilden,
• R. I. Carp,
• F. Taguchi,
• and V. Defendi

THE NATURE AND LOCALIZATION OF THE SV40-INDUCED COMPLEMENT-FIXING ANTIGEN

A TWO-QUANTASOME THEORY OF CHLOROPHYLL-A FLUORESCENCE IN GREEN PLANT PHOTOSYNTHESIS