1. a Depts. of Biological Sciences and Chemical Engineering, Texas Tech Univ., Lubbock, Texas 79409
2. b National Cotton Council of America, Memphis, Tennessee 38112
3. c U.S. Dept. of Agriculture, Southwestern Cotton Ginning Research Laboratory, Mesilla Park, New Mexico 88047
4. d Dept. of Physiology, Texas Tech Univ. School of Medicine, Lubbock, Texas 79409