Boston water works, Dam no. 2, Sudbury River.

Boston water works, Dam no. 1, Sudbury River.

Oct. 31, 1877. View of connection of Sudbury River pipeline with 48" outer pipe at effluent gate house, of Chestnut Hill Reservoir, looking west.

Oct. 31, 1877. View of gates on Sudbury River pipeline below effluent gate house, Chestnut Hill Reservoir, looking south.

Water works, Newton, Mass.

View of gates on Sudbury River pipeline below effluent gate house, Chestnut Hill Reservoir, looking south. Oct. 31, 1877.

Connection of the Sudbury River pipeline with 48" outer pipe at effluent gate house, of Chstnut Hill Reservoir, looking east. Oct. 31, 1877.

View showing brickmasons and equipment.

Water works, Newton, Mass.

Water works, Newton, Mass.

Water works, Newton, Mass.

Water works, Newton, Mass.

Water works, Newton, Mass.

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Nov. 13, 1876. Brickmason gang at the east end of section 16.

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Nov. 13, 1876. View taken below bridge from Newton side, showing the six completed arches.

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Nov. 13, 1876. View of south side of east abutment of arch "A", and of arches "C" and "D".

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Nov. 13, 1876. View from inside of conduit; brickmasons at work in the east terminal chamber of bridge.

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Nov. 13, 1876. South side of bridge from Newton side (centerings of arches "F" and "G" removed).

Water works, Newton, Mass.

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Nov. 13, 1876. View of south side view of arches "A" and "C" with centrings.

Water works, Newton, Mass.

Water works, Newton, Mass.

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Nov. 13, 1876. View of south side of east abutment of large arch with half of arches "A" and "C".

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Nov. 13, 1876. View of arches "A," "C," "D," and "E" with centrings from house above Ellis St.

View of an unidentified structure with a turret.

Sudbury River Conduit, B.W.W., div. 4, Nov. 13, 1876. View inside of engineer's office at Newton Upper Falls, Mass.

View of an unidentified building, horse and buggy in front.

View of two people sitting on a small, completed arch.

Sudbury River Conduit. B.W.W. Div. 4, Sec. 16 Nov. 14, 1876, view at east end of Sec. 16 showing excavating con..., stone and brick masons.

Sudbury River Conduit, B.W.W., div. 4, sec. 17, Nov. 13, 1876. View near rock-cut on sec. 17 showing ledgemen in the foreground and brickmasons in the background.