s the edge cuts the asylum, and found to completely ventilate the building. glass. He adds that he has tested the ventilator in every possible It is claimed for this implement that it is very durable, that way known to science, and found it perfect. It will be seen that the air enters this… … vessels, in both instances, with zinc, and that by almost the identical means now followed in the so- it can be used with great facility, that it is not liable to get called galvanized iron manufacture. The term “ galvanizing,” out of order or break, and that it will cut glass cven more long known…
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