BULL. GEOL. SOC. AM. 



VOL. 25, 1913, PL. 9 



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Figure 1. — Southern E.\L/ ur Glaui; lUx Terrace, 100 Feet aduve the River 

 Photographed by A. E. Ettinger 



Figure 2. — Gravel Pit in northern End of Glade Run Terrace^ 250 Feet above the 



River 



Photographed hy A. E. Ettinger 

 GLACIAL TOPOGRAPHY, GLADE RUN TERRACE, PENNSYLVANIA 



