History also helped in this regard, as well as providing encouragement. 

 I particularily wish to thank Wirt and Valerie Atmar, and AICS, Box 

 4691, University Park, Las Cruces, New Mexico, for the use of a System 

 2000 Terminal and Word Processor with which this bibliography was com- 

 posed. Most importantly, I wish to thank my wife Weslyn and son Alec 

 for their kindness and tolerance. I thank her and Wirt Atmar for their 

 efforts on the cover illustration. This bibliography was done under 

 contract 519-70-06 for the Endangered Species Program, New Mexico 

 Department of Game and Fish, and I thank Bill Baltosser in particular 

 for his help and consideration. 



