Watch the professor - Drawing. Public domain image.

Illustration shows an oversized man labeled "Beef Trust", with skeleton face, performing a magic trick on a stage by taking "Diseased Livestock" and pushing them through a tube labeled "Packingtown" to produce packaged "Pure Meat Products". A diminutive man, "The Prof's Assistant", wearing a cap labeled "Inspector" is standing on the stage on the left.

Caption: A monstrous and amazing feat of magic.
Illus. in: Puck, v. 59, no. 1525 (1906 May 23), centerfold.
Copyright 1906 by Keppler & Schwarzmann.