THE REPTILES OF OHIO 3 



(OSM) — Ohio State Museum, Columbus, Ohio. 



(OU) — Ohio University, Athens, Ohio. 



(SHS) — Sandusky High School, Sandusky, Ohio. 



(SL) — Stone Laboratory, Put-in-Bay, Ohio. 



(TZS) — Toledo Zoological Society, Toledo, Ohio. 



(UMMZ) — University of Michigan Museum of Zoology, Ann Arbor, Michigan. 



(USNM) — United States National Museum, Washington, D. C. 



(WC) — College of Wooster, Wooster, Ohio. 



(WRU) — Western Reserve University, Cleveland, Ohio. 



AcK.NOWLEDGF,MENTS 



The writer is indebted to a large number of persons who have assisted him during 

 the course of the present work. Naturally, these fall into a variety of classifications. 

 First are his professional colleagues whose keen interest in herpetology largely has been 

 responsible for keeping him at a task which at limes seemed endless and full of dis- 

 couragement. To Dr. Charles F. Walker, formerly of the Ohio State Museum, but 

 now with the Soil Conservation Service at Dayton, he is profoundly indebted. Dr. 

 Walker's work on the amphibians of Ohio and his extraordinary knowledge of the 

 natural history, geography and geology of the state have placed him in the unique 

 position of serving as a fountain head of information and as a propelling stimulus in 

 the present work. 



Other members of the American Society of Ichthyologists and Herpetologists have 

 been most helpful by acting as critics and advisers, by lending specimens, and by partici- 

 pating in the field work. To them the writer wishes to express his sincere thanks. 

 These include the late Dr. Frank N. Blanchard, of the Zoology Department of the 

 University of Michigan; Mrs. Helen T. Gaige, Dr. Norman E. Hartweg, Milton B. 

 Trautman, Reeve M. Bailey and Joseph R. Bailey, of the University of Michigan 

 Museum of Zoology; Dr. Howard K. Gloyd, Walter L. Necker, and Dr. Hobart 

 M. Smith, of the Chicago Academy of Sciences; Dr. Leonhard Stejneger and Dr. 

 Doris M. Cochran, of the United States National Museum; M. Graham Netting, of 

 the Carnegie Museum; Karl P. Schmidt, of the Field Museum of Natural History; 

 Dr. E. R. Dunn, of Haverford College; Dr. Thomas Barbour, and Arthur Loveridge, 

 of the Museum of Comparative Zoology; Dr. Edward H. Taylor, of the University 

 of Kansas; Dr. A. H. Wright, of Cornell University; Dr. William M. Clay, of the 

 University of Louisville; Henry W. Fowler, of the Academy of Natural Sciences of 

 Philadelphia; Arthur Greenhall, of New York City. 



Dr. J. Percy Moore, Professor of Zoology of the University of Pennsylvania, has 

 read the manuscript and offered several suggestions for its improvement. 



The directors, curators and professors in charge of the various Ohio museum and 

 college collections have kindly assisted by making specimens available for study, and 

 many of them have further aided by increasing their collections of reptiles on their 

 own time and at their own expense. Among these especially must be mentioned Edward 

 S. Thomas, Curator of Natural History of the Ohio State Museum, and Ralph Dury, 

 Director of the Museum of the Cincinnati Society of Natural History. Others who 

 have aided in this way are Professor E. L.. Moseley of the Bowling Green State 

 University, Professor Lynds Jones of Oberlin College, Dr. John W. Aldrich of the 

 Cleveland Museum of Natural History, Dr. ]. Paul Visscher and Dr. A. H. Hersh of 

 the Western Reserve University, Di. Robert A. Hefner of Miami University, Dr. H. 

 Ray Eggleston of Marietta College, Dr. W. A. Matheny of Ohio University, Dr. M. 

 Lelyn Branin of John Carroll University and Dr. Ralph V. Bangham and Dr. W. P. 

 Spencer of the College of Wooster. 



The writer is also indebted to the following who have made local collections of 

 reptiles near their homes or in the districts in which they were working: Arthur Stupka, 

 formerly resident at Columbus and Laurelville but now with the National Park 

 Service; O. E. Ehrhart of Antwerp; R. L. Pope of Hillsboro; Dr. Lawrence E. 

 Hicks of Columbus; Clarence James of Williamslown ; J. R. Kelso of Burton; Wm. 



