Feb 1, 2015
this colossal waste, both below and above the surface
* Fig. 1. Flushing culm into the troughs which feed the conveyors. (cropped, softly, from its borders, otherwise unmolested) ex George W. Harris. "Anthracite-Washeries." Transactions of the AIME (American Institute of Mining Engineers). 36 (1906) : 610-625 University of California copy, digitized October 30, 2012
In the earlier period of anthracite-mining, much coal was wasted, both underground and in the culm-banks on the surface. Such waste is common in the development of new mining districts, in which, as a rule, only the richest material can be profitably treated. In the anthracite-region, special causes operated to increase this evil... and epigram *
