Source:
The writings of John Muir (10 volume set), Manuscript Edition
(Boston: Houghton Mifflin, 1916), frontispiece to Volume 10, published 1924.
This volume is The Life and Letters of John Muir by William Frederic Bade, volume II.
Kimes Bibliography notes that the first 6 volumes were published in 1916, the rest thereafter; volume 10 was published in 1924.
Copy from California Digital Library, as provided on archive.org, notes:
“Evidence reported by scanner-ian-white for item writings johnmuir10muirrich on May 11, 2006; visible notice of copyright and date; stated date is 1924; not published by the US government; a copyright renewal record could not be found.”
A better quality black and white version is available from National Park Service, Yosemite NP Gallery: https://npgallery.nps.gov/YOSE/AssetDetail/aea19ffe2bf74a96ba04c4d1e8c5ffea