Houlton, Maine: F. Bourquin, 1887.
Map. Engraving with hand coloring. 15.25 x 12.5 inches. Repairs to margins lower right.
Beautiful map showing 9 different rock formations with concise hand coloring by Prof. Hitchcock, Geologist to the State of Maine. Verso shows Coast survey of Boothbay in Lincoln County, S Central Maine. From Colby's Atlas of the State of Maine, nicely engraved by William Bracher.