This section is from the book "Cassell's Cyclopaedia Of Mechanics", by Paul N. Hasluck. Also available from Amazon: Cassell's Cyclopaedia Of Mechanics.
A walnut gnnstock maybe coated with a very bright varnish made according to the following recipe. Take 1 oz. of best orange shellac, 4 oz. of gum sandarach, 2 oz. of gum benzoin, 1 oz. of Venice turpentine, one pennyworth of camphor, and 1 pt. of methylated spirit frequently agitate, and carefully strain through muslin. The varnish should be applied with a camel-hair brush in a warm room.
 
Continue to: