SCIENTIFIC SURVEY. 227 



A. GEOLOGY OF THE MORE SOUTHERN AND SETTLED 

 PORTIONS OF THE STATE. 



According to the plan proposed on a previous page, the descrip- 

 tion of the Geology of the more southern and settled portions of 

 the State will embrace three districts ; first, the country adjacent 

 to Rockland, and Camden ; second, the section from Eden to the 

 Canada Line, in Sandy Bay ; and third, a large region west of the 

 Kennebec River. The Geology of the first district is interesting be- 

 cause the relations of the (so-called) Taconic limestones, quartzites 

 and schists are discussed, both in a scientific and practical manner. 

 The second subdivision is occupied entirely with the description of 

 a Geological Section, the longest and perhaps the most important 

 one that could be measured anywhere in the State. 



I. Region of Rockland, Camden and vicinity. 



Perhaps it will be well at the outset to give the geographical 

 limits of this region. The accompanying Geological Map specifies 

 them very definitely'. Beginning in St. George and Gushing, the 

 portion explored widens in looking northwards, including Rockland 

 and Warren ; grows still wider where it includes Appleton, Hope 

 and Lincolnville, when it begins to diminish, and comes to a point 

 in Waldo. In brief language, it is a strip of country from five to 

 twenty miles in width, on the west side of Penobscot Bay, between 

 Belfast and St. George. The geology of Vinalhaven will also be 

 described briefly, although not delineated upon the map. 



This region was explored by C. H. Hitchcock and G. L. Goodale 

 during the first twenty days in July last. We were greatly assisted 

 a portion of the time by J. 0. Robioson, Esq., of Thomaston, who 

 often travelled with us to point out localities, and to communicate 

 facts respecting the quarries of limestone. A great deal of our 

 time was spent among the limestone deposits of Thomaston, Rock- 

 land and Camden, since the most difficult stratigraphical problems 

 to be solved were connected with them. I may say truly that I 

 never before found a region where it was morg difficult to ascertain 

 the true position of the strata than here. 



