310 BOARD OF AGRICULTURE. 



Iloulton. At this end it gradually dies away in a swamp. The 

 east side of Grand lake is underlaid by granite. Upon the hill 

 between Grand and North lakes may be seen the junction of the 

 granite with a mica schist deposit, apparently of the same age with 

 that on the St. Croix river. On North lake high mountains of 

 granite may be seen upon its southern and eastern sides. On the 

 contrary the northern and western sides are low and flat. We 

 went up the Boundary branch a few miles, and found the country 

 very low, but fertile. It is the commencement of the rich Aroos- 

 took country. One or two ledges of mica schist may be seen upon 

 it. Between North and Grand lakes we found several fossiliferous 

 boulders, probably of Lower Helderberg age, which must have 

 been derived from some unknown belt of this rock in Maine, as we 

 have never before seen anything precisely like it in the State. 



Geyieral Remarks. 



By comparing our results with those obtained by others in New 

 Brunswick, we may learn somewhat respecting the continuance of 

 our rocks in the province. And first, we would say that the great 

 belt of granite described by us as extending from Jonesport and 

 Addison to Calais, is almost entirely cut off by the St. Croix river. 

 It breaks out again in Charlotte county, N. B., and extends, with 

 a single interruption, to the river St. John, at the boundary be- 

 tween King and Queen counties. Second, the great belt of mica 

 schist noticed at Columbia last year, undoubtedly connects with 

 that on the St. Croix and Chepedneck rivers, and has been traced 

 through New Brunswick in a north-easterly direction, nearly to 

 the Bay of Chaleur, where it is covered up by red sandstone. A 

 spur of it follows the granite last spoken of bej'ond the river St. 

 John. It probably underlies a great portion of the New Bruns- 

 wick coal field. 



Third, the granite which we have traced from the third Chain 

 lake through the eastern Schoodic region, (and have suggested 

 may connect with the granite running down to Mt. Desert,) has 

 been traced through the province to the Bay of Chaleur, parallel to 

 the belt of mica schist upon its south-east side. If this range com- 

 mences at the islands off Penobscot bay, then we shall have here a 

 belt of granite two hundred and ninety miles long and from two 

 to twenty-two miles wide. Fourth, the mica schist is repeated on 

 the north-west side of this long granite belt, and is even longer. 



