across its own line at an elevation of many ffet above it. This deveJopment in the United States. The necessity for in the center. They are sustained by being anchored can be seen in the background, and in the preceding low original cost of roads has necessitated many ex- back, or by balancing, or… … highest railway bridge in the world, the trains passing illustration, Fig. Fig. l.-THE NEW PORTAGE VIADUCT, N. Y., LAKE ERIE & WESTERN R.R. over it 276 feet above the river bed. Each iron pier is 6, an in teresting regarded as triumphs of engineering. In the mountainous regions of the West the…
Munn · Illustrated · Plate · Patents · Scientific American · Contained · Hot water · Horse power · Gulf stream · Phonographic record · Illustration represents · Large number · Water level · Express money · Floor plans
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