Making and Knowing
A minimal edition of BnF Ms Fr 640 in English Translation

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To varnish

Turpentine varnish does not need any glue since it is fat and viscous and does not penetrate the wood as spike lavender varnish and sandarac varnish would. Spike lavender varnish does not require any glue on iron and similar materials which cannot be permeated, but on wood and on colors which do not contain gum or colle de d├ętrempe, it is necessary to lay one coat of the said glue colle de retailles and allow to dry, then varnish.