BULL. GEOL. SOC AM. 



VOL. 6. 1894, PL. 24. 



FiGl ItK 1. — ViKW OF THK BlTTK FROM KoOT-Hll.l.S ON SOUTIIKA.ST SlDK. 



Sliowing zone of lioodoos below and white sj'enite above. 



