San Francisco: Pacific Division/American Association for the Advancement of Science, 1979. Paperback. 493p., coated paperstock illustrated with charts, maps and diagrams; softbound in 10x7 inch decorated wraps. Mild external signs of wear, top edge has a couple light bumps, ownership name of [A. Starker] Leopold on cover (he was a Berkeley prof and environmentalist), good clean copy. Fifty-eighth annual meeting of the Pacific Division held at SF State University June 12-16, 1977.