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Publication Extents

Not all publications have extents, not all extents are completely accurate
The fauna of the Batesville sandstone of northern Arkansas
George H. Girty
1915, Bulletin 593
The beds in northern Arkansas that lie between the Boone limestone (commonly regarded as representing the Burlington and Keokuk epochs) and the Pennsylvanian have been divided into several formations, named, in ascending order, Moorefield shale, Batesville sandstone, Fayetteville shale, and Pitkin limestone. These formations presumably are equivalent to those that...
Some mining districts in northeastern California and northwestern Nevada
James M. Hill
1915, Bulletin 594
Scattered over its sparsely settled and generally arid expanse the State of Nevada contains approximately 200 centers of past or present mining activity. Some of these mining districts, such as the Comstock,1 Eureka,2 Tonopah,3 and Goldfield,4 have added millions to the world's wealth in precious metals and have been given...