1874 7 Nov. 515/1 Trautschold could find in the naphtha-bearing beds no trace of vegetable structures which might have yielded the organic materials.
1886 12 Feb. 149/2 The naphtha-bearing strata, three of which are so far known, belong to the lower miocene formation.
1909 2 Dec. 9/2 The leasing of certain areas of naphtha-bearing land contrary to existing regulations.