X CONTRIBUTORS 



Thomas F. Goreau, Department of Physiology, University of the 

 West Indies, Kingston, Jamaica 



Richard J. Goss, Department of Biology, Brown University, Provi- 

 dence, Rhode Island 



John A. Gray, Miami Valley Laboratories, The Procter & Gamble 

 Gompany, Gincinnati, Ohio 



Jerome Gross, Department of Medicine, Harvard Medical School 

 at the Massachusetts General Hospital, Boston, Massachusetts 



Norman M. Hancox, Department of Histology, University of Liver- 

 pool, Liverpool, England 



Ghester S. Handelman, Harvard School of Dental Medicine and 

 Forsyth Dental Genter, Boston, Massachusetts 



Willard D. Hartman, Peabody Museum of Natural History and 

 Department of Biologv, Yale Uni^'ersitv, New Haven, Gonnecti- 

 cut 



James T. Irving, Harvard School of Dental Medicine and Forsyth 

 Dental Genter, Boston, Massachusetts 



G. Neil Jenkins, Department of Physiology, Medical School, King's 

 Gollege, Newcastle upon Tyne, England 



Erling Johansen, Department of Dentistry and Dental Research, 

 School of Medicine and Dentistry, University of Rochester, 

 Rochester, New York 



Harold V. Jordan, Laboratory of Microbiology, National Institute 

 of Dental Research, Bethesda, Maryland 



Jenifer Jo\vsey, Department of Microradiography, Albert Einstein 



Medical Genter, Northern Division, Philadelphia, Pennsylvania, 



and (new affiliation) Section of Surgical Research, Mayo Glinic, 



Rochester, Minnesota 



Paul H. Keyes, Laboratory of Histology and Pathology, National 



Institute of Dental Research, Bethesda, Maryland 

 K. Lane, Department of Radiation Biology, School of Medicine and 



Dentistry, University of Rochester, Rochester, New York 

 Gharles M. Lapiere, Institut de Medecine, Hopital de Baviere, 

 Liege, Belgium, and (visiting research fellow) Department of 

 Medicine, Harvard Medical School at the Massachusetts Gen- 

 eral Hospital, Boston, Massachusetts 



