George D. Armstrong, Cyclopedia of Painting (1908)
“ Boil 1 pound of Brazil-wood in 1 gallon of water for three hours or more, add 1 ounce of pearlash, and apply it to the wood whilst hot, then brush over it a solution made of 2 ounces of alum in 1 quart of water. A solution of dragon's-blood in spirits-of-wine makes a very good stain, as already mentioned. The Brazil-wood is cut from a tree about twenty feet high, with prickly branches and yellow flowers, the decoction yields, in dyeing, rose-color, red, and yellow, according to the mordant used. ”
