70. A report on Indian sites and trails ..., by Margaret G. Hindes.
71. Further notes on clay human figurines in the Western United States, by James T. Davis.
72. Desert side-notched points as a time-marker in California, by M.A. Baumhoff and J.S. Byrne.
73. Petroglyphs of Sacramento and adjoining counties, California, by L. Arthur Payen.