Ox gall is gall, usually obtained from cows, that is mixed with alcohol and used as the wetting agent in paper marbling, engraving, lithography, and watercolor painting. It is a greenish-brown liquid mixture containing cholesterol, lecithin, taurocholic acid, and glycocholic acid.
http://www.winsornewton.com/news/making-water-thick-or-thin-gum-arabic-and-ox-gall
http://www.neogen.com/acumedia/pdf/ProdInfo/7216_PI.pdf
http://www.usbio.net/item/O8175
Famous quotes containing the word gall:
“No might nor greatness in mortality
Can censure scape; back-wounding calumny
The whitest virtue strikes. What king so strong
Can tie the gall up in the slanderous tongue?”
—William Shakespeare (1564–1616)