Los Gatos CA Pacific Domes 1970 and 1971

]. Book 1: 57 pages, with bibliography and unclassified ads. at end. Illustrated throughout with b/w photographic images, drawings and diagrams. The name "Chait" along with some mathematical workings on first page along with some underlining. Book 2: 127pp illustrated. Both volumes have a few annotations in both volumes in the same hand. These are 2 important publications to read to learn the basics of geodesic dome structures but actually are really one item: Both are age toned and a bit worn round the edges but packed with information on constructing domes.