KENTUCKY. 



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11. Muldraugh's Hill crossed before reaching Crab Orchard. See Note 7. Cauda Galli fossils 

 were found at Crab Orchard by Mr. Procter. There are fine specimens in the State cabinet. 



12. Paducah. At this point is an extensive deposit known as the Paducah Gravel Beds, afford- 

 ing, perhaps, the most superior road metal to be found in this country. This gravel is composed 

 of tlie waste from the degraded beds to the eastward, and is principally quartz pebbles from the 

 Conglomerate, and rounded fragments of chert from the Keokuk and St. Louis groups, with coaree 

 angular sand all quite ferruginous. When properly put down on streets or roads it soon cements, 

 and does not yield to the heaviest hauling, needing little after repairs, and affording a smooth, hard 

 street. It also affords a superior material for concrete. 



13. Lair Station. Near the road, half mile south of station, to west of road, there is an opening 

 i i a fissure vein, 20 inches wide, well filled with baryta, containing Galena, and zinc. 



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