Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 972
GUTTA PERCHA. 959 The water in all the compartments of the tank T should be used cold. When the crude gutta perchahappens to have a foetid smell, as is not unfrequently the case, mix with the water a solution of com-mon soda, or of chloride of lime. … In effecting the combination of sulphur and sulphurets with gutta percha, expose the gutta percha,after it has been cleansed and purified and reduced to a sheet state, to the combined action of steam ofa high temperature, and the vapors of orpiment (or other volatile sulphuret) and sulphur, (mixed…
Mechanical engineering
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