Dr. Ross's field work has resulted in a collection of over 300,000 specimens. His new book has over 100 drawings and photographs. Essays in the History and Philosophy of Science , by Michael T. Ghiselin and Alan E. Leviton, is now available. This well-illustrated book consists mainly of papers delivered at two meetings cosponsored by the Museo Civico di Storia Naturale in Milan and the California Academy of Sciences. The history of institutions, such as the Smithsonian, the University of California Herbarium, and the Museum of Natural History in Milan, makes for fascinating reading.
Cyatholipid spiders are among the dominant web building spiders in Afromontane forests.
The book is illustrated with 149 figures including drawings, micrographs, maps, and cladograms. All publications are available by direct mail order from the California Academy of Sciences, Scientific Publications, Golden Gate Park, San Francisco, CA 94118.