Young's Demonstrative Translation of Scientific Secrets / Or, A Collection of Above 500 Useful Receipts on a Variety of Subjects

by Daniel Young

107. COPAL VARNISH

Take 1 oz. of copal, and 1/2 oz. of shellac, powder them well and put them into a bottle or jar containing 1 quart of spirits of wine; place the mixture in a warm place and shake it occasionally, till you see that the gums are completely dissolved, and when strained the varnish is fit for use.