Scope and Contents Bifolium advertisement; 4 pages, with engraving of a "Crow" camp to front; folded into thirds with tears along folds, fragile.This is a very scarce advertisement for a wonderful piece of quackery, a herbal concoction apparently passed on to 'Professor' Barry by a hunter who, in turn, was given it by the medicine man O-gul-sa-wah of the Crow tribe in Nebraska in 1853. Of course, the recipe is secret, but the potion offers instant - yes, instant - relief from ailments as numerous...