PROCEEDINGS OF SCIENTIFIC SOCIETIES. . 443 

| 2 these rocks lie the granite rock, and there appears to be a gradual pas- 
: sage from true granite, through felsites, to undoubted Upper Devo- 
. Dian slates, these Nerepis granites being probably altered sandstones and 
grits at the base of the Upper Devonian series. e rocks south of the 
ose o 

d 
deeper waters, the rocks being much more uniform. In the partially 
metamorphic slates of the Lepreau division, ind and shells character- 
| istic of the Upper Devonian have been found, and when more highly 
2 altered, well defined crystals of staurotide, andalusite and garnet. 
aving unexpectedly found that the greater part of bó: metamorphie 
country in New Brunswick, near the United States border, is of Upper 
Devonian age, the authors offered some suggestions and conjectures on 
2 S age of the schists, granites, etc., in the south-eastern half 






8l portion of the Devonian. Both of these are probably represented in 
the granitic district of south-eastern Maine. To the eastward of this we 
appear to have chiefly Upper Devonian rocks, with occasional bands of 
upturned Upper Silurian rocks. The “tr ape” of this area correspond to 
the diorites, Hen at the base of the Mispeck division, id the red jaspe 
to the red felsites and orthophyre above them. It is probable that the 
Lepreau Rent Will be but meagrely represented, and the upper half of 
Mert wanting in this tract, such being the case around the Passa- 
uod 
On the OAL dod side of the granite ridge noted, we again meet in 
S of the latter had sunk in the pasty mass. Farther north . 
Devonian beds are folded and dip northward, passing beneath a 
fine greenish and grayish micaceous slates, which here 
kb 
* of Hancoc k County with the granitic masses around Mount Desert 
the coast, On the southern side of this last granitic ridge, and form- 

