An interesting illustrated description of this great engineering work, and the advantage it has already proved to the much congested traffic. (5500 w.)
The Boston subway
Elec Wld
1899
Article (Journal)
English
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Engineering Index Backfile | 1898
Engineering Index Backfile | 1898
Engineering Index Backfile | 1896
Engineering Index Backfile | 1896
Ventilation of the Boston subway
Engineering Index Backfile | 1895