Liquor Picis Ligni, B.P.C. Solution of Wood Tar.
Related entry: Pix liquida
|Wood Tar||5.00|||||1 ounce|
|Quillaia Bark, in No. 20 powder||10.00|||||2 ounces|
|Alcohol||to 100.00|||||to 20 fl. ounces|
Prepare a tincture measuring 100 (20 fluid ounces) by percolating the quillaia bark with the alcohol, digest the wood tar in this tincture at a temperature of 50° for two days, stirring occasionally. Cool and filter, and if necessary make up to the required volume.