A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . but as .sketches of the vessels actually used cannot be ob-tained, it is deemed to give a sketch of the platinum vessels, which weigh 823--10 troyounces, and contain, if filled to tlic neck, 8 gallons of water, a the retort or boiler; n thehead, provided with a tube of platinum, n, to joined at the time of >ise a long tubeof lead. C is a tube terminating on the shoulder of tlie boiler, and provided with a lid, anilis of service to allow of the
A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . but as .sketches of the vessels actually used cannot be ob-tained, it is deemed to give a sketch of the platinum vessels, which weigh 823--10 troyounces, and contain, if filled to tlic neck, 8 gallons of water, a the retort or boiler; n thehead, provided with a tube of platinum, n, to joined at the time of >ise a long tubeof lead. C is a tube terminating on the shoulder of tlie boiler, and provided with a lid, anilis of service to allow of the occasional stirring of the silver during solution, and of the addi-tion of the small (piantity of acid at the termination of tlie chemical action. The much coated with gold, which was removed with dilficulty and at great risk ofattacking the platinum. The sketches (fii/a. 583, 584, and 585) are 1 in. to a foot. 943 EEFINING GOLD AND SILVER. According to convenience and requirements, the retort or boilers may be multiplied aato number, but about 5 or 6 would seem to be a convenient set for operations. Indepen- 583.
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864
