LOWELL, PERCIVAL. Annals of the Lowell Observatory. Volume I. Observations of the planet Mars during the opposition of 1894-5 made at Flagstaff, Arizona. Boston and New York, 1898. Numerous plates, some color lithographs, many heliotypes after drawings by Lowell. 4to, buckram; original printed wrappers bound in. The original technical report of Lowell's "observation" of martian canals. (Photo-Illustrated)