cities. On a large scale, the common apparatus from $1.75 fo $2, the latter from $5 to $7, For vil- retort is formed with a series of inclined or spiral sur- for making coal-gas is very perfect; and is entirely dif- lages, factories, hotels and other public buildings, also faces, II, and the melted… … proprietors are experienced ing over of a light condensa- MARSH'S GAS APPARATUS. in the manufactured of all ble vapor of a very disagree- one where the heat is lowest, then it spreads and passes kinds of gas apparatus—coal as well as resin and oil— able odor, which is liable to become fiuid in…
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