ILLINOIS. 



135 



46. Roof shale and limestone of No, 6 coal full of fossils. 



47. Another outcrop of the same. 



48. Fossils in the limestone over the coal. 



49. Outcrop of nearly 250 feet of Chester limestone and shale abounding in the characteristic 

 fossils of this group. 



50. Fossils in limestone and shale over coal No. 6. 



51. Fossils of Upper Coal Measures abundant in shale below the mill dam and 2 miles east of 

 town at the bridge on the wagon road. 



52. Fossils in shale and limestone over coal No. 5. 



