6 
shore. The three sections which follow show the differences in 
the lithology of the same time unit within a stretch of about 100 
miles. 
Vaurial River Section 
Becsie River Formation. 
17. Well-bedded, bluish-grey limestone, very little shale. 
One bed is a limestone conglomerate with pebbles varying from 
fine gravel to boulders up to 6 inches in diameter. Some of the 
boulders are heads of Lyellia affinis. Basal zone of the Becsie 
River formation. 25 feet. 
Ellis Bay Formation. 
16. Not well exposed except near the base, where it con- 
sists of pale-blue limestone. 15 feet. 
15. Bluish-grey limestone with thin shale partings. Con- 
tains many Atrypa marginalis. 16 feet. 
14. Blue and bluish -grey limestone. 12 feet. 
13. Thin-bedded, blue limestone and blue shale. 10 feet. 
12. Thin-bedded, grey limestone with shale of about equal 
thickness. 9 feet. 
11. Thin, irregularly-bedded limestone. One layer with 
many Leptaena rhomboidalis. 7 feet. 
10. Concealed. 4 feet. 
9. Thin-bedded, fine-grained, dark-blue 
conchoid al fracture. 
limestone with 
7 feet. 
8. Concealed. 6 feet. 
7. Nodular, shaly, blue limestone. 4 feet. 
6. One bed of pale-blue, flaggy, thin-laminated lime- 
stone. 9 inches. 
5. Mostly concealed, but a 7-foot zone of mud shale at 
the top. The shale in some parts contains rough surfaced lime 
nodules and thin layers of nodular impure limestone. This zone 
contains many Hindella umbonata and Streptelasma selectum. 
18 feet. 
4. Reef limestone, no bedding, composed of corals plas- 
tered over each other. Contains an abundance of Favosites and 
Stromatopora. 4 feet. 
