Constitutive relations of an Illinois coal (Herrin #6 seam)
March 1974
submitted to the U.S. Bureau of Mines under Grant G 0110894
Coal--Herrin no. 6
Coal - Constituents
Coal no. 6
U.S. Bureau of Mines
Manuscripts, maps, fieldnotes, and photographs may be viewed in-house only. Please contact the ISGS Special Collections Curator, Anne Huber, for an appointment at 217-300-0005 or email huber@illinois.edu Monday thru Friday, 8am-noon or 1pm-5pm.