666 JESSE E. HYDE 



The northern limit of the present work in Licking County is by 

 no means a logical one; it cuts through the heart of the Toboso 

 conglomerate facies. Besides, conglomerate areas have been 

 reported from Knox County to the northward which may be at 

 about the same horizon and in which certain structures are reported 

 which are also found in the Toboso and Hocking Valley provinces.' 

 This conglomerate may be at a higher horizon, as its base appears 

 to be about 965 feet above the base of the Bedford shale. Whether 

 they are a continuation of the conglomerates of the Toboso province 

 or whether they belong to a distinct facies is not certainly known, 

 but apparently they are distinct. Other conglomerates of a yet more 

 uncertain horizon are reported from yet farther north in the north- 

 eastern part of Richland County,^ southern Ashland,^ and in Wayne 

 County'' where G. F. Lamb describes two conglomerate horizons. 



The two conglomerate areas considered in this paper, the 

 Toboso and Hocking Valley, have much in common. Litho- 

 logically and in the structure of their beds they are very closely 

 related, and both have clearly been formed in much the same way. 

 The other sandstone facies, the Vanceburg, is wholly different in 

 these and in other respects. Furthermore, the Granville shale 

 facies lying between the two conglomerate areas, although lying 

 mostly below drainage and hence inaccessible except by well- 

 records, is clearly influenced largely by their proximity. The 

 Black Hand and Berne members lying at the top of the Cuyahoga 

 in the conglomerate areas possibly in places under cover extend 

 entirely across the Granville facies, although the former in part 

 passes into shale in its surface outcrops. In fact, it seems very 

 probable that the Toboso and Hocking Valley conglomerate areas 

 are merely lobes extending northwestward from a much larger con- 

 glomerate area lying under cover of the Coal Measures at no great 

 distance to the southeastward, and that the Granville shale province 

 is the accumulation of shales with considerable sandstone lying 

 between these lobes. The Scioto shale facies is not influenced to 

 nearly such an extent by the adjacent sandstone areas. 



' Geol. Surv. Ohio, III, 337, 338. ^ Ibid., pp. 317-18. ^ ibid., p. 523. 



^Ihid., p. 539; also G. F. Lamb, Ohio Naturalist, XIV (1914), 344-46. 



