Aiterican. Scientific FEBRuARY 17, 1883.] 109 … Diagrams. With Drawings trom Models; showing all Chicago, June 8, 1882. P.H. & F. M. ROOTS, Manufacturers, the Combinations of Solid Korms which occur in Rail- road Excavations and Embankments. By John War- CONNERSVILLE, IND. ner, Engineer. A new revised and improved edition, 8vo, : : Z ‘i ; F F $4…
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