You know how we got taught in elementary school that Native Americans used every part of the Buffalo? Well early 20th century industrial food processors were good at that too.

From Upton Sinclair’s The Jungle

 “No tiniest particle of organic matter was wasted in Durham's. Out of the horns of the cattle they made combs, buttons, hairpins, and imitation ivory; out of the shinbones and other big bones they cut knife and toothbrush handles, and mouthpieces for pipes; out of the hoofs they cut hairpins and buttons, before they made…