Dictionarium Polygraphicum. Containing. Polygraphick Dictionary. L. (Litharge.) How to make Spanish White. To give stuffs a beautisul Lustre.

Dictionarium Polygraphicum:
Or, The Whole Body of Arts Regularly Digested.
Vol II.
London: Printed for C. Hitch and C. Davis in Pater-noster Row, and S. Austen in St. Paul's Church Yard. MDCCXXXV.
1735
How to make Spanish White.
Grind white chalk with a tenth part of alum with fair water, 'till it is very soft, and afterwards bring them to a thickness, and make them into balls, lay them so that they may dry leisurely; then when you use them, heat them well in the fire.

To give stuffs a beautisul Lustre.
For every 8 pound of stuff allow a quarter of a pound of linseed; boil it half an hour, and then strain it through a cloth, and let it stand till it is turned almost to a jelly; then put an ounce and half of gum to dissolve 24 hours; then mix the liquors, and put the cloth into this glutinous mixture; take it out, dry it in the shade, and press; and if you find that once doing this is not sufficient, repeat the operation, and it will give the stuffs a very beautiful lustre.