——. Son of the Wilderness: The Life of John Muir (New York, 1945), xvii + 364 pp.
Woods, Daniel B. “Southern Mines [Mariposa and Tuolumne counties],” in Sixteen Months at the Gold Diggings (New York, 1851), pp. 77-166.
Wright, George M., Joseph S. Dixon, and Ben W. Thompson. Fauna of the National Parks of the United States: A Preliminary Survey of Faunal Relations in National Parks (Washington, 1933), 158 pp., illus.
Yard, Robert Sterling. “Director of the Nation’s Playgrounds,” Sunset, September, 1916, p. 27, illus.
——. “The Unforgotten Story of Hetch Hetchy,” American Forests, December, 1934, pp. 567-569, illus.
——. The John Muir Trail: A Brief Account of the Mather Mountain Party’s Outing of 1916 (Washington, D. C., 1918), 94 pp. (mim.), 46 photographic prints.
Yeager, Dorr G. Your Western National Parks (New York, 1947), illus., maps.
Yosemite Natural History Association. Yosemite Nature Notes (Yosemite, July, 1922, to date).
Yosemite National Park. Report of the Acting Superintendent, 1892-1914, and Report of the Superintendent, 1916 to date.
Yosemite Park and Curry Company. “The Firefall: Explanation and History” (pamphlet printed in Yosemite, 1940), 6 pp.