Panorama of Philæ as inundated by the great dam at Assouan [i.e., Aswan], Egypt

Interior of Fort Sumpter (i.e. Sumter), showing light house

B.W.W. dam division, Dam I, gate house and overflow from north side of river, Oct. 1, 1877.

B.W.W. Dam Division. Dam III, south centre wall and 8" permanent sheeting looking north, June 14, 1877.

B.W.W. dam division, Dam III, temporary sheeting for north center wall, looking north, July 14, 1877.

B.W.W. Dam Division, Dam III, North Center wall and grading looking south.

B.W.W. dam division, Dam I, gate house foundation and south embankment wall, July 14, 1877.

B.W.W. dam division, Dam II, temporary sheeting fro outer wall, north side of gate house, July 14th, 1877.

B.W.W. dam division, Dam II, foundation for gate house and overflow, 1877.

B.W.W. dam division, view showing excavation for gate house foundation and foundation wall of overflow at Dam II, Junly 14, 1877.

Boston water works, Sudbury River Conduit, 1876, Dam no III, north end of Dam, showing foundations of gate house, looking north.

Boston water works, Sudbury River Conduit, 1876, Dam no. III, north end of Dam, looking south towards Hauer's(?).

Boston water works, Sudbury River Conduit, 1876, Dam II, view of foundations, looking west.

Boston water works, Sudbury River Conduit, 1876, Dam I, view showing location of dam and bridges on Winter Street over Sudbury River.

Boston water works, Sudbury River Conduit, Sept. 1876, Dam III, Rubble masonry foundations, southeast corner of gate house.