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To Etch Upon Glass


Procure several thick, clear pieces of crown

glass; and immerse them in Melted Wax, so that they may receive a

complete coating, or pour over them a solution of Wax in Benzine. When

perfectly cold draw on them with a fine steel point, flowers, trees,

houses, portraits, etc. Whatever parts of the drawings are intended to

be corroded with the acid should be perfectly free from the least

particle of wax. When all these dr
wings are finished the pieces of

glass must be immersed one by one in a square leaden box or receiver,

where they are to be submitted to the action of Hydroflouric Acid Gas,

made by acting on Powdered Flour-Spar by Concentrated Sulphuric Acid.

When the glasses are sufficiently corroded, they are to be taken out,

and the wax is to be removed by first dipping them in warm and then in

hot water, or by washing with turpentine or benzine. Various colors may

be applied to the corroded parts of the glass, whereby a fine painting

may be executed. In the same manner sentences and initials of names may

be etched on wine-glasses, tumblers, etc.



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