Written by the assistant chief in the Department of Mines, this is a short booklet about the then-current state of the mining industry in Pennsylvania. Starts off a little effervescent about coal as a magical resource, which I suppose is understandable given the circumstances. According to the booklet, PA has the greatest depository of coal in the US and has more capital invested in coal operations than any other state. There are two types of coal present: anthracite in the eastern part of PA, and bituminous in the western part. There’s about 3x more bituminous coal available in PA compared to anthracite, but anthracite is more valuable due to its…