Written in the 1880s, this book covers the annals of coal mining history as far back as the medieval period. Of course, developments in the industry up until the 1710s were few, and thence the majority of the book focuses on the Industrial Revolution. The narrative style of the book is fantastic, and reads much more pleasantly than most of the text books and reference material we have at our disposal today.
It covers the principal developments in the industry, such as the coming of the steam engine, improved winding techniques, and the advent of the steel mill and Sir Humphrey Davy's Safety Lamp. No history of coal mining would be complete without reference to the human cost of the enterprise, and Galloway talks in detail about some of the great explosions of the day, and the strive made by colliery proprietors to seek solutions for the terrible dangers. Several of the anecdotes and instances described by Galloway, as far as I am aware, are solely unique to this work, and accounts for many subsequent writers on the subject referring to his work frequently.
Usefully for anyone with a keener interest on the actual running of the pits, there is good description of the layout of the shafts, which I often find can be dreadfully confusing for someone who is not familiar with coal works. The development of machinery and methods employed to pump out the ever-present water, and lifting the coal (and workers) from the shafts is given much attention, too.
This work is essential reading for all concerned with the subject, though it should be noted that with the book being published in 1882, there is no reference to the important later developments in coal mining, such as the widespread introduction of electricity.