Scope and Content Single pocket expanding folder containing the following documents:1. Bound manuscript figures, "Cross-sections, San Gabriel River, Anaheim Street to Turning Basin, December, 1939," Francis Bates, 69 pp (1939)2. "Co-ordinate control C. S. map of 1859," "Map of a part of the coast of California from Point Fermin eastward to San Gabriel River, 1859," US Coast Survey, A.D. Bache, Superintendent, Section X. Same map as in Envelope R-2, but with different markings on print...