Samuel Johnson (1787). “The Works of Samuel Johnson, LL.D.: Together with His Life, and Notes on His Lives of the Poets, by Sir John Hawkins, Knt. In Eleven Volumes ...”, p.366
John Muir (1997). “Nature Writings: The Story of My Boyhood and Youth, My First Summer in the Sierra, the Mountains of California, Stickeen, Selected Essays”, p.517, Library of America