Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 849
move the phialrapidly to and fro, so that the string shall workupon the glass between the two pieces of paper.When the glass becomes hot in the equatorialspace, pour some cold water upon it, and the glasswill break as evenly as if cut with a knife. The principle involved in this curious… … CUTTING THE PHIAL. get an assistant to hold one end, and then work thebottle to and fro. The glass of the neck will be-come so warm as lo expand, and the stopper willbecome loosened. It is often necessary to continuethis friction for some minutes before the desiredresult is attained. iS78.] PARLOR…
Children's literature
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