16 



Excursions: Taughannock glen; Tully or upper Hamilton 

 limestone at entrance; farther in, lower ioo ft., Genesee shale; 

 upper ioo ft., lower Portage. 



Obtain Spirifer levis at base of Ithaca falls, south side, ledge 

 2 ft. above water level. Obtain Fig. 62 from shale back of the 

 old Ksty barn. 



Jamestown. — Rocks: Grayish or greenish-gray sandstone and 

 shale; often calcareous. 



Exposures: East Jamestown quarries, with Amboccelia um- 

 bonata (108-109), Productella hystricula (107), Camaro- 

 toschia contracta (90-91), Cam, duplicata (94), Dalman- 

 ella leonensis (113), Athyris angelica (97) , Athyris polita 

 (98), Spirifer disjunctus (small) (87), Mytilarca che- 

 mungensis (73), Sphenotus contractus (78), crinoid 

 stems, Bryozoa. 



Visit quarries on eastern flank of hill north of Falconer, the 

 quarries and little ravines on Swede and English hills, and obtain 

 Leptodesma potens (70-71) and other fine Chemung species. 



Excursions: Panama conglomerate at Panama, 14 miles 

 west of town. Fossils: Ptychopteria (74), Leptodesma, etc. 

 Return by Checkered schoolhoUse above Ashville and see same 

 conglomerate with Eumphalus (86). Visit Pope Hollow 10 miles 

 east of town, just in Cattaraugus county. Observe Pope Hollow 

 conglomerate high up on north flank of the Hollow. It is strati- 

 graphically about 180 ft. above the Panama conglomerate. Climb 

 up north declivity. Fossils numerous. Observe Chautauqua 

 lake from crest of hill. 



Mt. Morris. — Rocks: Dark gray, and nearly black shale. Also 

 thick beds of argillaceous sandstone. 



Exposure: Genesee river banks, just above old wooden 

 bridge. 



Fossils: Lunulicardium fragile (17), Lingula, Orthoceras, 

 scarce. 



Naples. — Rocks; Black shale, gray sandy shale, thick, heavy- 

 bedded sandstone. 



