This book, "A practical treatise on petroleum comprising its origin, geology, geographical distribution, history, chemistry, mining, technology, uses and transportation.Together with a description of gas wells, the application of gas as fuel, etc. 1", by Benjamin Johnson Crew, is a replication of a book originally published before 1887. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.