- Tracy, Henry
- Digital Commonwealth
- Boston Public Library
- Lith. of E.W. Bouvé
Map of Lake Cochituate oriented with north to the right. Map of Spot Pond oriented with north to the upper right. Depths shown by soundings. Some measurements of Long Pond taken in 1845. Shows proposed outlets for aqueduct and places where samples were taken. Surveyed under the direction of John B. Jervis, c.e. by Henry Tracy, c.e.
- Aqueducts--Massachusetts--Cochituate, Lake--Maps
Aqueducts--Massachusetts--Spot Pond (Stoneham)--Maps
Cochituate, Lake (Mass.)--Maps
Spot Pond (Stoneham, Mass.)--Maps
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