Biopositive Effects of the Optical Radiation on Man

Various authors. A summary of proceedings from the first International Arnold-Rikli Symposium (Switzerland, 1989), a scientific conference on the health benefits of light. Includes abstracts of presentations by 20 leading scientists and physicians. Rare. The few comprehensive copies (with the entire presentations) in circulation are selling for $250. This copy, which has the abstracts only, plus a 28-page introduction, is $50. Never used; there are a few scratches on cover and pages are slightly yellowed from age, but overall condition is very good. (Paperback, 62 pages)