Snelling, Henry Hunt, 1816-1897 · [New York : W.B. Smith] · leaf 387
binding screws with a metal rim, and onthe latter can be hung several moulds, asin the drawing. Things are much morelikely to go on well when several moulds,asthus, are operated on, than when onlyone is thus introduced. The reason willbe manifest hereafter. (§ 63.) 47. The following precautions…
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