SCIENTIFIC SURVEY. 



127 



on the shores of the rivers and their tributaries, Lobelia Kalmii, 

 Anemone Pennsylvanica, and two species of Vitis, V. labrnsca and 

 V. cordifolia. Even a third species of the Vine is said to be found 

 near Woodstock, but a protracted search failed to detect it. It 

 will be remembered, perhaps, that it was stated in the report of 

 last year that a section of great fertility'' was noticed on the east 

 branch of the Penobscot, near the mouth of the Wassataquoik and 

 Sebois. Our limits which we have assigned to the Aroostook belt 

 embrace this portion of the county as well as much of the west 

 branch valley beyond Katahdin. The adaptability of this valley 

 to farming purposes will be shown, at length, in the report upon 

 the " Wild Lands." In order to better exhibit the limits of the 

 two sections, I have made the following map, upon which are rep- 

 resented the St. John and Ai'oostook districts. 



Those who have at hand the Geological map prepared by Mr. 

 Hitchcock will see that the more fertile belt corresponds remarkably 

 to the defining lines of the great formation of calciferous slates and 

 slates of Devonian age. Of course the lower limit of the Aroostook 

 section must, for the present, be considered entirely provisional, be- 

 cause we have not been able to devote suflScient study to this portion 

 'of the subject. The southern part of the Aroostook district and the 

 northern portion of the Somerset section are therefore regarded now 

 as having vegetation which is, so to speak, confluent. It is my opin- 



