Accompanied by 2 foldout plates -- Plate 1 : Geologic Map of Coke County, Texas. Plate 17 : Sections of Four Deep Borings : Stroud No. 1, at Robert Lee and Westbrook No. 1 at Tennyson, in Coke County ; Cain No. 1 near San Angelo, Tom Green County ; Richardson No. 1, Sterling County, With Correlation."Bureau of Economic Geology and Technology. Division of Economic Geology."