Note 009 — Chapter I
Reading edition
The great coal field of which that of western Pennsylvania is a part, is eight hundred miles in length and one hundred and eighty in width. Besides Pennsylvania, it includes southeastern Ohio, the western part of Maryland, most of West Virginia, portions of Kentucky and Tennessee, and the northern end of Alabama. In Pennsylvania, the main field does not extend farther north than a central east-and-west line, but several great projections reach almost to the northern boundary. East of the Alleghenies the deposits are anthracite, while the bituminous fields occupy the southwestern section of the state.—Ed.