104 



AN AMERICAN GEOLOGICAL RAILWAY GUIDE. (PA.) 



138. Plants in the Trias as atPhcenixville. Trap. 



139. Saucon zinc mines. 



140. Warwick iron mine 3 miles to the east, on the edge of Trias; with trap; copper, &c. 

 Jones' mine 1 miles to the north at the east extremity of the Canestoga belt of the Lancaster Co. 

 limestone. French Creek copper mines further east than Warwick. 



141. Line of serpentine to the left. Road runs along the belt from Kennet Square for several 

 miles. 



142. Roofing slate quarries at Peach Bottom on the Susquehanna River. 



143. Coal names on the highest land at the only practicable north and south pass over the great 

 water shed between the Pennsylvania and New York waters. 



144. Latest discoveries and geologically the lowest of the Pennsylvania oil horizons; hundreds 

 of new oil wells, all productive. Oil 1775 feet below the Oil-City-Olean conglomerate. 



