Sudbury River Conduit, B.W.W., div. 4, sec. 15, Sept. 13, 1876. Vie of centring of arch "A" (when almost completed) from east bank of river and looking down stream.

Sudbury River Conduit, B.W.W. Div.4, Sec 15, Sept. 13 1876, view of cutting of large arch taken from east bank of Charles River.

Sudbury River Conduit, B.W.W. div.4, sec 15, Aug. 17 1876, view of Charles River bridges taken from Needham side, looking east.

Sudbury River Conduit, B.W.W. div.4, sec 15, May 13 1876, view of the east bank of Charles River from the Needham side.