1. Poisonous Plant Research Laboratory,
Agricultural Research Service, United States Department of Agriculture, 1150 E. 1400 N., Logan, Utah 84341,
United States
2. Cincinnati Hills Christian Academy, 11525 Snider Road, Cincinnati, Ohio
45249, United States
3. Department
of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, Utah
84322-0300, United States