Two B/W folding maps: Comparative Map of Cape Cod Harbor & Cape Cod Harbor. Includes the pages of the two related reports.
Comparative Map of Cape Cod Harbor & Cape Cod Harbor , 2 maps, 1892
Comparative Map of Cape Cod Harbor Showing Physical Changes between the Coast Surveys of 1867 and 1889-90; Cape Cod Harbor Massachusetts Sketch showing changes in depth on the border of house Pl. Isl. flats 1867 and 1889-90. 1894