PENNSYLVANIA 427 



981. Inside view of terminal moraine near Bangor, Northampton county, looking 



northwest. Report Z, Second Geological Survey of Pennsylvania, plate 2 

 (No. 1636). 



982. Moraine hummocks west of Bangor, Northampton county, looking southwest- 



Report Z, Second Geological Survey of Pennsylvania, plate 3 (No. 1637). 



983. Castle rock, Edgemont township, Delaware county, Pennsylvania (No. 1640). 



984. Lafayette soapstone quarry, Montgomery county, Pennsylvania (No. 1649). 



985. Trap boulders, French Creek falls, Pennsylvania (No. 1652). 



986. Trap boulders, French Creek falls, Pennsylvania (No. 1653). 



987. Trap boulders, French Creek falls, Pennsylvania (No. 1654). 



988. Water Sheet narrows, Huntingdon county, Pennsylvania. Juniata river 



(No. 1655). 



989. Breaker at Hollywood colliery, showing stripping (No. 1656). 



990. Synclinal in mammoth bed, Hollywood colliery, Hazelton, Pennsylvania. 



Shows open-work mining after stripping (No. 1657). 



991. Gneiss peak on Harvey Thomas farm, L. Bethel township, Delaware county, 



Pennsylvania (No. 1661). 



992. Burned rocks, Fayette city, Monongahela river (No. 1662). 



993. Rausch's gravel quarry, Bethlehem, Pennsylvania (No. 1663). 



994. Limestone quarry, Bethlehem, Pennsylvania (No. 1664). 



995. Old Wheatley lead mine, near Phoenixville, Pennsylvania (No. 1665). 



996. Old Smelting Works mine, near Phcenixville, Pennsylvania (No. 1666). 



997. Old Wheatley lead mine, near Phoenixville, Pennsylvania (No. 1667). 



998. Head frame, Kaska William colliery, Schuylkill county, Pennsylvania (No. 



1669). 



999. Delaware water gap (No. 1680). 



1000. Avondale quarry, Delaware county, Pennsylvania (No. 1681). 



1001. Contorted gneiss, Spring Mill, Montgomery county (No. 1683). 



1002. Contorted gneiss, Spring Mill, Montgomery county (No. 1684). 



1003. Anticlinal on Schuylkill river 2 miles above Port Clinton (No. 1685). 



1004. Cut on Schuylkill Valley railroad showing "creep " (No. 1686). 



1005. Potts' limestone quarry, below Norristown (No. 1687). 



1006. Limestone quarry, Port Kennedy, Phoenix Iron Company (No. 1693). 



1007. Limestone in Schuylkill Valley railroad cut near Mogeetown, Pennsylvania 



(No. 1697). 



1008. Contorted gneiss of Wissahickon creek, near the Philadelphia and Reading 



railroad bridge. Report C 4, plate viii, Geological Survey of Pennsylvania 

 (No. 1699). 



1009. Creep stride on roofing slate, Bangor, Northampton county, Pennsylvania. 



Report Z, plate 61, Geological Survey of Pennsylvania (No. 1700). 



1010. Creep striae on roofing slate, Bangor, Northampton county, Pennsylvania. 



Report Z, plate 61, Geological Survey of Pennsylvania (No. 1701). 



1011. Glaciated boulder from moraine, base of Huntingdon mountain, near Jones- 



town, Columbia county, Pennsylvania. Report Z, plate 118, Geological 

 Survey of Pennsylvania (No. 1702). 



1012. Stripping at Hollywood colliery No. 1, looking east. Report A. C, Second 



Geological Survey of Pennsylvania, page plate No. 52 (No. 1574). 



1013. Workings at Hollywood colliery No. 1, looking south. Report A. C, Second 



Geological Survey of Pennsylvania, page plate No. 53 (1579). 



