The itch in man is cured very effectually by using the marrow of an ass, or the urine of that animal, applied with the mud it has formed upon the ground. Butter, too, is very good; as also in the case of beasts of burden, if applied with warmed resin: bull glue is also used, melted in vinegar, and incorporated with lime; or goat's gall, mixed with calcined alum. The eruption called "boa,"[1] is treated with cow-dung, a fact to which it is indebted for its name. The itch in dogs is cured by an application of fresh cows' blood, which, when quite dry, is renewed a second time, and is rubbed off the next day with strong lie-ashes.