doi:10.7916/d8-cq1r-w218Letter from the acting Secretary of War transmitting, with a letter from the Chief of Engineering, reports of examination and survey of Diamond Reef and Coenties Reef, East River, New YorkMeiklejohn, George D. 1857-1929bookstextRiver surveys--New York (State)--New York.Reefs--New York (State)--East River.East River (N.Y.)