HISTORY OF THE SULFURIC ACID THEORY OF SPELEOGENESIS IN THE GUADALUPE MOUNTAINS, NEW MEXICODAVID H. JAGNOW P. O. Box 93398, Albuquerque, New Mexico 87119-3398 USACAROL A. HILL 17 El Arco Drive, Albuquerque, New Mexico 87123-9542 USADONALD G. DAVIS 441 S. Kearney St., Denver, Colorado 80224-1237 USAHARVEY R. DUCHENE 7216 East Bentley Circle, Englewood, Colorado 80112-1197 USAKIMBERLEY I. CUNNINGHAM Geo-Microbial Technologies Inc., P.O. Box 132, Ochelata, Oklahoma 74051 USADIANA E.