nkw BRUNSWICK. 579 



has been kindly communicated to nie by Professor Bailey, ami bai 

 been submitted to Mr Billings, who regards the species si equivalent 



to those of the Port Daniel limestones of the northern side of the I Jay 

 de Chaleur, which may be regarded as intermediate in age between 

 the Niagara and Lower Helderberg groups, and therefore probably 

 not far from the horizon of the Upper Arisaig series, or perhaps 

 between this and the Lower Arisaig group. 



The following fossils from Dalhousie and Kestigouche, now in the 

 Museum of the University of New Brunswick, have been determined 

 by Mr Billings. The assemblage is in the main that of the Lower 

 Helderberg. 



Favosites basaltica. 



Favosites Gothlandica. 



Zaphreutis, n. s., same as one in the Caspe limestone. 



Stenopora. 



Halysites catenulatus. 



Syringopora. 



Diphyphyllum. 



Orthis tubulistriata, Hall, or allied. 



Orthis oblata, Hall. 



Strophomena rhomboidalis. 



Strophomena punctifera, Conrad. 



Strophomena varistriata. 



Spirifera cycloptera. 



Atrypa reticularis. 



Cyrtia Dalmani. 



Rhynchonella vellicata, Hall. 



Athyris princeps, or allied. 



Leptocoelia, allied to L. hemispherica. 



Fenestella. 



Megambonia, allied to M. ovoides, Hall. 



Conocardium. 



Pleurotomara, allied to P." labrosa, Hall. 



Euomphalus sinuatus (?) 



Dalmanites. 



General Remarks. 

 The group of partially metaraorphic Upper Silurian rocks above de- 

 scribed includes the most elevated land of Nova Scotia and Southern 

 New Brunswick. The Cobequid range, attaining at several points a 

 height of 1200 feet, is the highest chain of hills in Nova Scotia ; and 

 forms, in its whole length, the watershed dividing the streams (lowing 



