610 EEPOET UNITED STATES GEOLOGICAL SURVEY. 



From Station 137, Mr. Mushbach. brouglit in the following : 



Euomplialus luxus. 



Froductus semireticulaiMS. 



Bpirifer rocJcymontanus. 



Spirifer (MartiniaJ planoconvexa. 

 Mr. Mnshbacli reports tbat some of the limestones were almost en- 

 tirely composed of masses of these fossils. These hills probably repre- 

 sent the western side of an anticlinal, the axis of which must lie towards 

 the east side of Malade VaUey. There may be a fault, but I saw no ev- 

 idence of it. 



