English: 1892: bison skulls await industrial processing at Michigan Carbon Works in Rogueville (a suburb of Detroit). Bones were used processed to be used for glue, fertilizer, dye/tint/ink, or were burned to create "bone char" which was an important component for sugar refining.
Date
circa 1892
date QS:P,+1892-00-00T00:00:00Z/9,P1480,Q5727902
Source
Burton Historical Collection, Detroit Public Library
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{{Information |Description=Photograph from the mid-1870s of a pile of American bison skulls waiting to be ground for fertilizer. Courtesy of the . |Source=http://www.raeky.com/bison/, originally Burton Historical Collection, Detroit P