This hardcover book, titled “OIL IN THE EARTH,” was written by Wallace E Pratt and published by the University of Kansas in 1942. The book’s topic and subject are both focused on petroleum oil, making it a valuable resource for those interested in the history of oil exploration and production. The book is written in English and is in good condition for its age. It would make a great addition to any collector’s library or those interested in the history of energy resources.