Particulars of this most difficult of subaqueous tunneling projects, with illustrations. (3000 w.) (No. 91407)
The meeting of the four east river tunnels of the Pennsylvania railroad
Eng Rec
1908
Article (Journal)
English
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The 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