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 p 610
tags:
this evil; coal; culm; mining; waste; new districts; water
G. W. Harris, “Anthracite-Washeries” (1906)