Table of Contents

• Janko N. Herak
• and Walter Gordy

FREE RADICALS FORMED BY HYDROGEN ATOM BOMBARDMENT OF THE NUCLEIC-ACID BASES

• Richard Bellman
• and Robert Kalaba

ON A NEW APPROACH TO THE NUMERICAL SOLUTION OF A CLASS OF PARTIAL DIFFERENTIAL INTEGRAL EQUATIONS OF TRANSPORT THEORY

• O. Hayes Griffith

ELECTRON SPIN RESONANCE OF FREE RADICALS IN PERHYDROTRIPHENYLENE INCLUSION COMPOUNDS

• A. L. Burlingame,
• Pat Haug,
• Theodore Belsky,
• and Melvin Calvin

OCCURRENCE OF BIOGENIC STERANES AND PENTACYCLIC TRITERPANES IN AN EOCENE SHALE (52 MILLION YEARS) AND IN AN EARLY PRECAMBRIAN SHALE (2.7 BILLION YEARS): A PRELIMINARY REPORT

• Mu Shik Jhon,
• Joe Grosh,
• Taikyue Ree,
• and Henry Eyring

THE SIGNIFICANT STRUCTURE THEORY APPLIED TO META- AND PARA-XYLENE

• F R Babich,
• A L Jacobson,
• and S Bubash

Cross-species transfer of learning: effect of ribonucleic acid from hamsters on rat behavior

• R Lorente de Nó
• and V Honrubia

Theory of the flow of action currents in isolated myelinated nerve fibers. VII

• E Weiler,
• E W Melletz,
• and E Breuninger-Peck

Facilitation of immune hemolysis by an interaction between red cell-sensitizing antibody and gamma-globulin allotype antibody

• C Tal

The nature of the cell membrane receptor for the agglutination factor present in the sera of tumor patients and pregnant women

• M Diaz
• and C Pavan

Changes in chromosomes induced by microorganism infection

• M B Rotheim
• and A W Ravin

Low frequency of co-integration of two linked streptomycin-resistance markers in Pneumococcus

• J Séchaud,
• G Streisinger,
• J Emrich,
• J Newton,
• H Lanford,
• H Reinhold,
• and M M Stahl

Chromosome structure in phage T4, II. Terminal redundancy and heterozygosis

• C Shalitin
• and F W Stahl

Additional evidence for two kinds of heterozygotes in phage T4

• F W Stahl,
• H Modersohn,
• B E Terzaghi,
• and J M Crasemann

The genetic structure of complementation heterozygotes

• D L Kirk

The role of RNA synthesis in the production of glutamine synthetase by developing chick neural retina

• J M Salb
• and P I Marcus

Translational inhibition in mitotic HeLa cells

• A D Welch

Inhibition by 2'-deoxyadenosine of enzyme induction in Pseudomonas testosteroni

• J A Olson
• and O Hayaishi

The enzymatic cleavage of beta-carotene into vitamin A by soluble enzymes of rat liver and intestine

• M E Dahmus
• and J Bonner

Increased template activity of liver chromatin, a result of hydrocortisone administration

• R Johnsson
• and A Hegyeli

Induced orientation of the growth of malignant cells in vitro

• D Söll,
• E Ohtsuka,
• D S Jones,
• R Lohrmann,
• H Hayatsu,
• S Nishimura,
• and H G Khorana

Studies on polynucleotides, XLIX. Stimulation of the binding of aminoacyl-sRNA's to ribosomes by ribotrinucleotides and a survey of codon assignments for 20 amino acids

• R H Adamson,
• R L Dixon,
• F L Francis,
• and D P Rall

Comparative biochemistry of drug metabolism by azo and nitro reductase

• Y P Myer
• and H A Harbury

Optical rotatory dispersion of cytochrome c

• H M Price,
• G B Gordon,
• C M Pearson,
• T L Munsat,
• and J M Blumberg

New evidence for excessive accumulation of Z-band material in nemaline myopathy

• R Biltonen,
• R Lumry,
• V Madison,
• and H Parker

Studies of the chymotrypsinogen family. IV. The conversion of chymotrypsinogen A to alpha-chymotrypsin

• F A Beach
• and N G Inman

Effects of castration and androgen replacement on mating in male quail

• W M Elsasser

Semiformal representation of organismic concepts

• S K Jain
• and R W Allard

The nature and stability of equilibria under optimizing selection

• K G Lark
• and R E Bird

Segregation of the conserved units of DNA in Escherichia coli

• M Takanami
• and Y Yan

The release of polypeptide chains from ribosomes in cell-free amino acid-incorporating systems by specific combinations of bases in synthetic polyribonucleotides

• R E Alston,
• H Rösler,
• K Naifeh,
• and T J Mabry

Hybrid compounds in natural interspecific hybrids

• R E Ecker

The role of ribosomal RNA in the control of ribosomal protein synthesis

DNA ASSOCIATED WITH TOBACCO CHLOROPLASTS