ACKNOWLEDGMENTS
A number of colleagues and friends have kindly permitted us to make use of unpublished data and of previously published figures, tables, and statements. In each such instance we trust the meaning of the original author has not been misrepresented.
We are pleased to acknowledge with thanks our appreciation of the kind
ness of the following people in granting permission to reproduce material : Dr. Francis A. Arnold, Jr., National Institute of Dental Research, U.S. Public Health Service; Dr. David B. Ast, Bureau of Dental Health, New York State Department of Health; Dr. C. M. Bell, University of Tennessee-Atomic Energy Commission Agricultural Research Laboratory ; Dr. H. L. Dunn, National Office of Vital Statistics, U.S. Public Health Service; Dr. Yngve Ericsson, Royal Dental School, Stockholm, Sweden;
Dr. Donald J. Galagan, Division of Dental Public Health, U.S. Public Health Service ; Dr. Thomas A. Gonzales, Chief Medical Examiner, New York City; Dr. I. Ν. Hill, Zoller Dental Clinic, University of Chicago;
Dr. D. Jackson, School of Dentistry, University of Leeds, Leeds, England;
Dr. P. Kachroo, editor: The Indian Journal of Veterinary Science and Animal Husbandry ; Dr. Henry Klein, National Institute of Dental Research, U.S. Public Health Service; Mr. E. J. Largent, Richmond, Virginia; Dr. W. L. Lidbeck, Salem Medical Laboratories, Salem, Oregon; Dr. F. J. McClure, National Institute of Dental Research, U.S.
Public Health Service; Dr. H. H. Mitchell, University of Illinois; Mr.
I. M. Moriyama, National Office of Vital Statistics, U.S. Public Health Service; Dr. P. H. Phillips, University of Wisconsin; Dr. Clayton Rich, Veterans Administration Hospital, Seattle, Washington; Dr. A. L.
Russell, National Institute of Dental Research, U.S. Public Health Service; Dr. J. B. Shrivastav, editor: The Indian Journal of Medical Research; Dr. James Le G. Shupe, U.S. Department of Agriculture, Logan>
Utah; Dr. Leon Singer, University of Minnesota; Dr. John W. Suttie, University of Wisconsin; Mr. LeRoy Vorhis, National Research Council;
Mrs. Billie Weil, Office of the Chief Medical Examiner, New York City;
Dr. W. E. White, Ozark-Mahoning Company; Dr. I. Zipkin, National Institute of Dental Research, U.S. Public Health Service; American Association for the Advancement of Science, Washington, D.C. ; American Journal of Roentgenology', Radium Therapy and Nuclear Medicine, Charles C. Thomas, publisher; H. K. Lewis and Co., Ltd., London, England;
Ohio Agricultural Experiment Station, Wooster, Ohio.
ix
χ ACKNOWLEDGMENTS
Much valuable assistance was rendered us by Dr. Walter Kirner and Dr. H. L. Jeffrey of the Chemical-Biological Coordination Center of the National Research Council. Unpublished data were willingly furnished by the following Screening Agencies of the Center:
Chemical Corps, Biology Division, Camp Detrick, Maryland, Dr.
Orem Woolpert; Chemical Corps, Medical Division, Army Chemical Center, Maryland, Dr. W. H. Chambers; College of Veterinary Medicine, University of Illinois, Dr. N. D. Levine; Connecticut Agriculture Experi
ment Station, New Haven, Connecticut, Dr. J. G. Horsfall; Michigan State College, Lansing, Michigan, Dr. Η. B. Tukey; National Research Council, Prevention of Deterioration Center, Washington, D.C., Dr.
C. J. WTessel; Suffield Experimental Station, Suffield, Alberta, Canada;
U.S. Department of Agriculture, Agricultural Research Service, Dr. A. W.
Lindquist, Dr. C. N. Smith, Dr. J. W. Mitchell, Dr. E. F. Knipling, and Dr. C. T. Bottger; U.S. Department of Agriculture, Bureau of Ento
mology and Plant Quarantine, European Corn Borer Research Laboratory, Des Moines, Iowa, Dr. W. G. Bradley; U.S. Department of the Interior, Fish and Wildlife Service, Bureau of Commercial Fisheries, Ann Arbor, Michigan, Dr. J. W. Moffett; U.S. Department of the Interior, Fish and Wildlife Service, Bureau of Sport Fisheries and Wildlife, Kearneysville, West Virginia, Dr. R. E. Lennon; U.S. Department of the Interior, Fish and Wildlife Service, Patuxent Economic Investigations Laboratory, Laurel, Maryland, Dr. J. B. De Witt.
Dr. Gerald J. Cox of the School of Dentistry, University of Pittsburgh, collaborated with us in a most friendly fashion in the early phases of assembling the bibliography; by checking our material against his ex
haustive bibliography, the references listed were improved in accuracy and completeness.
The authors are indebted to Dr. Eliot D. Hutchinson for much help in preparing this volume. Dr. Hutchinson sought out references from a multitude of sources, helped cross-check bibliographies and references, kept reprints available and in order, and read galley proofs, always with the greatest cheerfulness, patience, and attention to detail. He sat through many a lengthy and detailed discussion while various sections of the chapters were developed and gave us the benefit of a more detached point of view. His all-round assistance is much appreciated.
Finally, but by no means least, our appreciation and thanks are ex
tended to the several typists who worked on the manuscript. We especially wish to thank the Misses Kay Foster, Doris Kelley, and Mary Wallman.
The authors of this volume were supported in part by contract with the United States Atomic Energy Commission at the University of
ACKNOWLEDGMENTS xi Rochester Atomic Energy Project, Rochester, New York. Reproduction of the color prints was partially subsidized by Grant DE 02052-01 from the United States Public Health Service.
The complete bibliography with titles upon which this volume is based has been deposited as Document Number 8452 with the ADI Publications Project, Photoduplication Service, Library of Congress, Washington 25, D.C. 'For photoprints or microfilm copies address inquiries to: Chief, Photoduplication Service, Library of Congress. Kindly cite document number.
May, 1965 HAROLD C. HODGE
FRANK A. S M I T H
