Boston: Houghton Mifflin, 1904.
23 volumes. Frontispiece portrait, numerous illustrations in color and black and white on Japan vellum with tissue guards. Short 8vos, beautifully bound in 3/4 green morocco with elaborate gilt-decorated floral designs on spine, top edges gilt. Boston: Houghton Mifflin, 1904-1923. Fine.
The Riverby edition. Signed by Burroughs on the title page of volume 1. Volumes 18-23 are similarly bound, but in light brown leather. Volume 18 is additionally inscribed by Burroughs on the flyleaf.