Title: Guayanes Harbor, Yabucoa, P. R. Letter from the Secretary of War transmitting a letter from the Chief of Engineers, United States Army, dated April 28, 1937, submitting a report, together with accompanying papers and illustration, on a preliminary examination and survey of Guayanes Harbor, Yabucoa, P. R., authorized by the River and Harbor Act approved August 30, 1935
Subjects: Hydrography, Harbors, Topographical surveying