XIV EXPLANATION OF THE GEOLOGICAL MAP. 



exception is a remarkable band, probably of this age, extending around 

 the Bay de Chaleur, and which is given after Sir William Logan. 

 Many similar beds of trap are believed to exist on the northern margin 

 of the Carboniferous area of New Brunswick. 



The northern part of the General Section does not coincide precisely 

 with that of the Map, in consequence of the introduction of several 

 trappean masses not indicated in the colouring of the latter. These 

 are given as they occur in Dr Robb's Section, and may represent inter- 

 stratified igneous rocks. I have thought it best to leave them as 

 given by Professor Robb, not having myself explored the district. 



I may also state that the General Section attached to the Map is 

 intended to give the arrangement of the formations on the large scale 

 only, and makes no pretension to represent the numerous minor 

 undulations and fractures. 



