Joseph Leidy. Fresh-water Rhizopods of North America. Volume XII from Report of the United States Geological Survey of the Territories
Washington, 1879. Edited by F. V. Hayden. 324 pages of text, 98 colored plates drawn by Leidy and lithographed by Thomas Sinclair. Association copy inscribed by Leidy to Joseph Willcox (a contributor to this volume recognized on page 295). Original, strong binding.