Vol. XII, No. 1 (1924). Worn around edges, short note written on front cover; else very good. 
This issue contains "First Ascent of Mount Wilbur" by Norman Clyde, "Goddard and Disappearing Creeks - The Enchanted Gorge" by J. S. Hutchinson, "First Ascent of the Minarets" by C. V. Michael, "A Talk by John Muir, from Notes by Alden Sampson," "Place Names of the High Sierra" by Francis P. Farquhar, "Explorations in the Great Tuolumne Cañon" (from "Overland Monthly," 1873, XI:139) by John Muir, etc. Illus. with photos by Ansel Adams, et al.