Letter from Prof. W. H. Echols, Missouri School of Mines. [The formulae given are simple and useful.]
Railroads curves
Eng News
1889
Article (Journal)
English
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Engineering Index Backfile | 1889
|Engineering Index Backfile | 1889
|Engineering Index Backfile | 1890
|Engineering Index Backfile | 1889
Engineering Index Backfile | 1886