15417.git, branch main Scientific American Supplement, No. 388, June 9, 1883 initial commit of ebook 15417 2025-10-15T11:46:41+00:00 Roger Frank rfrank@pglaf.org 2025-10-15T11:46:41+00:00 5b31ce59908b0fcfcb6fe5bd0f3bfa62f01333ac