- Eddy, R. H. (Robert Henry), 1812-1887
- Digital Commonwealth
- Boston Public Library
- Pendleton's Lithography
Shows conduits from Spot Pond and Mystic Pond to Charlestown and Boston. Relief shown by hachures. Oriented with north toward the upper left. By R.H. Eddy, engineer.
- Water-supply--Massachusetts--Middlesex County--Maps
Middlesex County (Mass.)--Maps
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