VOLCANIC ROCKS OF THE MARITIME PROVINCES. 83 



of the St. Croix River, and stretching in a niimljer of 

 interrupted bands nearly to the shores of Baie Chaleur. 

 A great area flanked on each side by metamorphic slates 

 of doubtful age, through which it has thrust itself, stretches 

 from end to end of the Nova Scotian peninsula. Other 

 small isolated areas are known in both provinces, but 

 none at all comparable in size to those mentioned. TJiese 

 granites seem to have come to the surface during the 

 great upturning that closed the Devonian in the Maritime 

 Provinces, and which metamorphosed and tilted to a 

 greater or less extent all the pre-Carboniferous strata. 



The Maritime Provinces attords a great field for petro- 

 graphic study of igneous rocks and one in which little 

 has been done. The question as to the individual suc- 

 cession of the different kinds of rocks in each volcanic 

 period, their centres of distribution, and the connection 

 of the surface voleanics with the intrusive masses are as 

 yet almost untouched, and although the unsettled and 

 wooded character of much of the region would hinder 

 the working out of these problems, yet a careful study 

 would no doubt be well repaid. It is to be hoped that 

 much will yet be dene in this almost untrodden field. 



PODURITES SALTATOR. 



A fossil insect (Springtail) of the Little River Group— magnified and restored. 



