520 Annals nv the Carnegie MusEuisr. 



Monoti'ypclla sp. c, Isotehis harrisi r, 



Camarotaechia plena a, Illffnus i^lohosus r. 



Biicatiia sulcatina r, 



C^. Same as C, but containing more specimens of Cainaro/irc/iia 

 plena. 3 feet 8 inches = 7 feet 6 inches. 



Caviarotoechia plena a, Modiolops/s falmformis r. 



Isotelns harrisi r, 



C3. Cross-bedded, bght-gray bmestone, made up of comminuted 

 fossils. I foot = 8 feet 6 inches. 



Caniarota'cliia plena a, Modiolopsis fabaforinis r. 



C^. 151uish-gray, fine-grained crystalline limestone, the top four 

 inches cross-l)edded. 2 feet =10 feet 6 inches. 



Camarota'chia plena aa, Monofrypella sp. r. 



Modiolopsis fa baf or nil s r, 



C. Light-gray limestone in compact layers about six inches thick. 



2 feet 6 inches = 13 feet. 



Caiiiarota-chia plena aa, Alodiolopsis fabaforinis r. 



Cg. Thin-bedded, gray limestone, full of Caniarota'ehia plena. 



I foot 10 inches = 14 feet 10 inches. 



CamarotKchia plena aa, Isoielus harrisi r, 



Canierella loni:;iroslris r, Asaphiis alpha r. 



C.. Light-gray crystalline layers made up of fragments of shells. 

 There is a dike two feet wide which crosses this zone along a joint 

 crack. Tts direction is N. 65° W. There is a fault of i foot 11 inches 

 between the two walls enclosing the dike, with the down-throw to the 

 north. 5 feet 4 inches ^20 feet 2 inches. 



Hebertelia Tiil;<:;aris r, Isoielus harrisi c, 



Hebertella %\). r, Ilheniis globosus x, 



Rafines(]uina alternata r, Leperditia canadensis c, 



Camarota'chia plena aa, Modiolopsis fabaformis r. 



Cg. Thicker-bedded, light-gray limestone with much calcite. A 

 two-inch dike crosses this zone ])arallel to the larger one in C. 



5 feet 6 inches = 25 feet 8 inches. 



