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Diagrams [ ] illustrating lectures on ventilation [deliv]ered before the Franklin Institute by L. W. Leeds 1866-67.

James P. Wood & Co., manufacturers of improved apparatus for steam heating, (high and low pressure,) ranges, cooking apparatus, &c. Gas lighting, for public buildings, dwellings and towns. Ventilating, by automatic action, steam or power fans. 39 South Fo

Schuehler Bros., tin roofers, heater & range workers, 1124 North Second Street, shop, 142 Edward St., Philadelphia.

Winter scene in Philadelphia. [graphic].

Winter scene in Philadelphia.