Note 6 — Chapter III
S. R. (Sylvester Rosa) Koehler translation
(p. 20.) The use of bordering wax is not advisable. But as some etchers still employ it, I add a recipe for making it, which was kindly communicated to me by Mr. Peter Moran of Philadelphia:—
3 lbs. Burgundy pitch.
1 lb. yellow beeswax.
1 gill sweet oil.
Melt together and then form into strips.