compiled in the Bureau of Topl. Engrs. from the surveys of Capt. W.G. Williams, T.E. with recent corrections and additions by Capt. I.C. Woodruff, T.E. ; engraved by W.H. Dougal
Depths shown by gradient tints and soundings.
Label pasted in lower left corner: Presented to the Public Library of the City of Boston by Capt. Geo. G. Meade Top. Engrs. Supdt. Survey of the Lakes.