130 



Report of the State Geologist. 



4. Tropidoleptus carinatus (Con.), Hall. (a) 



5. Oyrtina Hamiltonensis, Hall. (r) 

 (>. Qrammysia arcuata, (Con.), Hall. (it) 



7. Qra/m/mysia bisulcata (Con.), Hall. (rr) 



8. Crinoid segments. 



It. Spi/roplvyton velum (Van.), Hall. (c) 

 X/X A' 5 . On the south side of the highway and the south branch of 

 Mad brook, opposite the reservoir, is the Swan quarry, which is only about 

 ten feet higher than the top of the upper reservoir dam <>!• some 273 feet 

 above the railroad at the village, or 1,315 feet A. T. At the bottom of the 

 quarry is a bluish sandstone from one and one-half to two feet thick, which 

 has been quarried to some extent, capped by about eight feet of rather arena- 

 ceous shales that contain plenty of small Hamilton lamellibranchs. During 

 a hasty search the following species were collected : 



1. 



Spirifer muoronalus (Con.), Bill, 



(a) 



2. 



IAorhyncltus multicosta, Hall. 



(aa) 



3. 



Tropidoleptus carinatus (Con.), Hall. 



00 



4. 



Spvrifer Tall ins, Hall. 



(rr) 





The shell has distinctly the form of this s 



species and 





front of the valves are apparently traces of striae on the r 





There are several very small specimens of 



Spirifev w 





possibly belong to this species. 





5. 



Palceoneilo consPricta (Con.), Hall. 



00 



6. 



Nhwula lirata (Con.), Hall. 



(c) 



>- 

 t . 



JSFucula bellistriata (Con.), Hall. 



(rr) 



8. 



iV lie til 'ties t/i'iqnetei\ Con. 



(rr) 



9. 



Palceoneilo emarginata (Con.), Hall. 



(rr) 



1<». 



Phthonict cylindrical Hall. 



(rr) 



1 1. 



Modiomorpha mytiloides (Con.), Hall (0- 



(rr) 



ileal' 



the 



The striae are of this species but the shape at the anterior end 

 is nearer that of M. COIlGentricCl (Coll.), Hall. 



12. LiopU rin DelCayi, Hall (?). (rr) 

 1 .">. Ortlwtlietes Chemungensis (Con.), Hall and Clarke, 



var. /urn rsci, 1 1 all. (rr) 

 14. Grammysia (Splienomyd) cuneata, Hall. (rr) 



Crushed specimen agreeing closely with the description of this 

 species. 



