ACKNOWLEDGMENTS 



In revising this manual, ilu' members of tlie Committee gratefully ac- 

 knowledge the advice and assistance of tlic following, each of whom is a rec- 

 ognized authority in some asjjcct of hiology or medit'ine: C. A. Aluiga, Steven 

 C. Anderson, H. D. Baernstein, Charles M. Bogert, F. AV. Buess, "W. I^slie 

 Burger, Roger Conant, Carl dans. Joseph F. Gennaro. Jr., Itzchak Gilboa, 

 Alice C. Grandison, Laurence M. Klauher. IJoi)ert E. Kuntz, Alan E. Leviton, 

 Hymen Marx, Samuel 1!. :\Icl),.wcll. K. A. C. Powell, George B. Kabb, H. 

 Alistair Reid, Janis A. Roze. tlie late F. A. Shannon. Harold Voris, John E. 

 Werler, and Eric AA'orreli. 



Personnel of the Medical Pliolography Dixision. Naval Medical School, 

 National Naval Medical Center, prejjared most of the line illustrations and 

 furnished some of the jjliologiaphs. Dr. T. E. Reed. DirectfU- of the National 

 Zoological Park, kindly made a\ailab|c ccitaiii specimens for photography. 

 The index was prei)ared bv Itzcliak (iillioa. 



S. A. M., Jr. 



H. G. D. 



F. E. R. 



