Digital collections

Present Stone Lighthouse on Minots Ledge, Massachusetts. This structure ranksamong the difficult lighthouse engineering works of the world. In:Lighthouses and Lightships of the United States by George R. Putnam, p. 76, 1917. Houghton Mifflin and Company, Boston. Library Call No. 527.7 P98. (Image credit: Archival Photo by Mr. Steve Nicklas)