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Scientific American, Vol. 81, No. 17 (1899) (1899)

leaf 4

An illustration from Scientific American, Vol. 81, No. 17 (1899), 1899, leaf 4
- Philadelphia and Reading nel excavation was carried on Terminal Railroad to Twelfth beneath dwellings, of which LSE Ut and Market Streets upon con- SPRING CARDEN a large number were occu- dition that at the points pied. Driving tunnels and where its allied companies’ Hr. constructing sewers… … Avenue, which is almost in attain the desired end. One the heart of the city, would not only seriously damage of our engravings shows one of the difficulties with which valuable property, but would the engineers had to contend. This was the raising also ruin the city’s finest avenue which is one of…

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