A general summary of the work, with illustrations. (2000 w.) (No. 91435)
The east river tunnels of the Pennsylvania railroad
R R Gaz
1908
Aufsatz (Zeitschrift)
Englisch
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The meeting of the four east river tunnels of the Pennsylvania railroad
Engineering Index Backfile | 1908
The air power plants of the East river tunnels of the Pennsylvania railroad
Engineering Index Backfile | 1906
The Pennsylvania tunnels under the East river
Engineering Index Backfile | 1906
The compressed air plants used in boring the East River tunnels of the Pennsylvania Railroad
Engineering Index Backfile | 1906
Engineering Index Backfile | 1906