Geological and agricultural survey of the district adjoining the Erie canal in the state of New York.
Introductory reports signed: Amos Eaton. Has nice renderings of towns along the canal, including Black Rock. Available also through the Library of Congress.
Reports of Joseph Ellicott as chief of survey (1797-1800) : and as agent (1800-1821) of the Holland Land Company's purchases in western New York, 1937-1941