Vill PREFACE 
of accuracy and clarity of expression. Although the discussions received a less per- 
missive treatment, an effort was made in the portions which survived editorial 
scrutiny to retain as much as possible of the author’s mode of expression. Transcripts 
of the round-table discussions were edited separately by elected participants. The 
conferees also recommended a less specific title for this volume than was used for the 
conference. It was clear that some participants retain a serious doubt that the 
freely-extractable amino acids are uncombined within cells. To accommodate all 
points of view the title Amino Acid Pools was adopted despite some reservations of 
an aesthetic nature. 
Many will recognize the absence of contributions from some investigators who 
have made pre-eminent findings in this field. In most instances, prior commitments 
prevented their attendance and a serious effort was made in the interests of historical 
accuracy and comprehensiveness of treatment to have the respective subjects dis- 
cussed by their associates or collaborators. 
The success of this enterprise was due in large measure to the contributions of 
several dedicated associates. On behalf of the organizing committee I should like to 
identify these as follows: Mr. DANIEL SEEDMAN, who supervised travel, housing and 
other physical arrangements; Mrs. HELEN WENGER, Mrs. HELEN PINKERTON and 
Mrs. MARGERY SIDDONS from our secretarial staff; Mr. MAx LENz who supervised 
the sound equipment; and Mr. FRANKLIN A. STEINKO who produced an accurate 
stenotyped record of the informal discussions. 
Principal financial support for the conference came from a contract between this 
institution and the Office of Naval Research (Contract NON R-(G)o009-61). We are 
indebted to Mr. LEO SHINN, Chief of the Biochemistry Branch and Dr. JOHN LOEFER 
of the Pasadena Branch Office for their able and sympathetic management of the 
requisite negotiations. The conference was held at this institution under the auspices 
of the Institute for Advanced Learning in the Medical Sciences which also contributed 
generously to its support. Additional contributions were provided by the UPJOHN 
Company, Kalamazoo, Mich. and by the Don BAXTER Company, Glendale, Calif. 
JosEPH T. HOLDEN 
