| Sudbury River Conduit, B.W.W. div. 4, sec 15, Aug. 17 1876, lower part of centering of great arch. |  |  | 
					
				| B.W.W. div. 1, sec A, Winter Street bridges and conduit below Dam I, and excavation for river wall, July 14, 1877. |  |  | 
					
				| Water works, Newton, Mass. |  |  | 
					
				| Sudbury River Conduit, B.W.W. div.4, sec 15, Aug. 17 1876, north side of arch "G", Ellis St. |  |  | 
					
				| B.W.W. dam division, Dam I, gate house foundation and south embankment wall, July 14, 1877. |  |  | 
					
				| Sudbury River Conduit, B.W.W. div.4, sec 15, Aug. 17 1876, view of Charles River bridges taken from Newton side and looking west. |  |  | 
					
				| B.W.W. dam division, Dam I, center wall and embankment, north side of river, July 14, 1877. |  |  | 
					
				| Sudbury River Conduit, B.W.W. div.4, sec 15, Aug. 17 1876, ledge cut. |  |  | 
					
				| Sudbury River Conduit, B.W.W. div.4, sec 15, ledge of cut, Aug. 17 1876. |  |  | 
					
				| Water works, Newton, Mass. |  |  | 
					
				| Sudbury River Conduit, B.W.W. div.4, sec 15, Aug. 17 1876, view of Charles River bridges taken from Needham side, looking east. |  |  | 
					
				| 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. |  |  | 
					
				| Water works, Newton, Mass. |  |  | 
					
				| Sudbury River Conduit, B.W.W. div.4, sec 15, May 13 1876, view from Newton side and looking west. |  |  | 
					
				| Water works, Newton, Mass. |  |  | 
					
				| 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. |  |  | 
					
				| View of engineers on the project at work in their office. |  |  | 
					
				| View of engineers on the project at work in their office. |  |  | 
					
				| Rosemary siphon, looking east from conduit, June 1877. |  |  | 
					
				| Rosemary siphon, looking east, June 1877. |  |  | 
					
				| Boston water works, Sudbury River Conduit, 1876, Division III, view of west siphon chamber. |  |  | 
					
				| Boston water works, Sudbury River Conduit, 1876, Division III, west siphon chamber, showing 48" pipes for siphon. |  |  | 
					
				| Boston water works, Sudbury River Conduit, 1876, Division III, Section 13, Almshouse embankment, looking east. |  |  | 
					
				| Boston water works, Sudbury River Conduit, 1876, Division III, Section 12, showing fill over conduit at Great Plains Ave. |  |  | 
					
				| Boston water works, Sudbury River Conduit, 1876, Division III, Section 12, sheeted trench heavy sand cutting. |  |  | 
					
				| Boston water works, Sudbury River Conduit, 1876, Division III, Section 12, sheeted trench heavy sand cutting. |  |  | 
					
				| Boston water works, Sudbury River Conduit, 1876, Division III, Section 12, Fuller's Brook waste weir. |  |  | 
					
				| Waban Valley bridge, south side, June 1877. |  |  |