I was recently seventeenth century researching fishing and found this instruction for making a waterproof boot polish.
I have a willing mind with Gods help to preserve all those that love this recreation, to goe dry in their boots and shooes, to preserve their healths, which one receit is worth much more than this book will cost.1
First, they must take a pint of Linseed oyle, with half a pound of mutton suet, six or eight ounces of bees wax, and half a pinniworth2 of rosin, boyle all this in a pipkin together, so let it coole untill it be milk warm, then take a little hair brush and lay it on your new boots; but its best that this stuff be laid on before the boot-maker makes the boots, then brush them once over after they come from him; as for old boots you must lay it on when your boots be dry.
It comes from BARKER’S DELIGHT: OR, THE ART OF ANGLING. Wherein are discovered many rare Secrets very necessary to be known by all that delight in that Recreation, both for catching the Fish, and dressing thereof by Thomas Barker, second edition 1659. If anyone gives it a try, let me know how it works.
1 Twelve pence, according to one of the introductory poems at the front of the book.
2 Possibly a pennyweight, a unit of weight equal to 24 grains, or roughly 1.6g. There are 20 to the Troy ounce.