The law relating to oil and gas : including oil and gas leases and contracts, production of oil and gas, both natural and artificial, and supplying heat and light thereby, whether by private corporations or municipalities, regulating gas companies, insurance, negligence, transportation, explosives, forms of oil and gas leases and contracts, etc., with all federal, state and Ontario statutes pertaining to natural gas and oil. - Thornton, W. W. (William Wheeler), 1851-1932 (The W. H. Anderson co., 1925)