National Speleological Society - pg. 2 including 1988 NSS Speleo Digest - Some water damage
The NATIONAL SPELEOLOGICAL SOCIETY (NSS) is a non-profit organization affiliated with the American Association for the Advancement of Science. It was founded for the purpose of advancing the study, conservation, exploration, and knowledge of caves. In addition, the Society collects and publishes information relating to speleology in this country and in all parts of the world. Membership in the Society encourages protection and conservation of caves and provides contact with thousands of serious explorers and scientists in the United States and foreign countries.
