3943.121 Massachusetts. Metropolitan Water and Sewerage Board. Map showing Metropolitan Water District, Wachusett, Sudbury and Cochituate water- sheds, and locetions of reservoirs, aque- ducts and pipe lines. January 1, 1906. (In Brackett, Dexter, Metropolitan water works. Between pp.650 and 61. Size, 7 1/4 X 14 1/4 inches. Scale, computed, 4 miles to l inch. [Boston, 1907. J) Same. [Boston.] 1916. Size, 9 7/8 X 22 3/8 in- ches, Scale (computed), 2 1/2 miles to 1 inch. Map 81.6.M3,1916
 
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