Carl H. Ernst, professor emeritus at George Mason University and a research associate at the Smithsonian Institution, is coauthor of Turtles of the United States and Canada, also published by Johns Hopkins . Until her recent retirement, Evelyn M. Ernst taught high school chemistry and biology and was an administrator with the National Science Resources Center. Together they wrote Snakes of the United States and Canada.
A winner. Midwest Book Review 2011 This is an authoritative summary of the authors' personal research and more than 3,000 literature sources. It, and the upcoming second volume, will be an excellent resource for professionals in many fields for years to come and a detailed reference book for anyone wishing to know about venomous snakes. Highly recommended. Choice 2011 A valuable source of information for anyone interested in these species, and is sure to be a standard reference for serious herpetologists. -- Steven Winchell Reptilia 2012