Abstract
In utilizing a camlachie cramp in a foundry, there are two important conditions, one is as temperature changing by transmission of heat and the other is as chemical variation depending upon the surface condition of solid metal used to the camlachie cramp. No tests were run on the temperature changing, but around a steel chaplet treated with plating or scaling on its surface molten iron had been poured, then both a micrographic and macrographic structures were observed. (N. T.)
