CK. ine, and 6 or 5 per cent of collodion, mixed to- by it compared with the other engines proves.” gether. It is viscous, but can be easily cut Comparing the date of the “‘ Royal George” Hence, had +8 Water Supply of Cities. tilator and chimney, which, we are informed, and passages in the valve… … manner. gether wherever the joints of either may lap, An improved Gang Wood Saw, making COMBINED VENTILATOR AND CHIMNEY. One strengthens the other, and a greater dura- ~
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