654 STRATIGRAPHICAL GEOLOGY. 



upon Plate XIV. Fig. 47 seems to follow very nearly the course of Sec- 

 tion VIII. Among its most important features are the numerous flexures 

 in the Huronian ; and the presence of the Lyman group for the first time 

 in our sketch of the sections, in following their numerical order. Viewed 

 generally, the Lisbon group is seen clearly to underlie the Lyman. They 

 are followed by the Coos micaceous quartzites, with reversed easterly 

 dips; and these in their turn by the Calciferous mica schists near the 

 western edge of Newbury, dipping in the same easterly direction. The 

 valley of Tabor creek indicates clearly an inverted basin, followed by an 

 anticlinal in the deepest part of the valley. The hill between this and 

 Wait's River village seems to exhibit the double basin character. The 

 great axis of the formation is reached in the east part of Washington, 

 while the rock continues to the east line of Northfield. 



Section IX. 



Section IX has been measured from the state line between Batchel- 

 der Grant and Bean's Purchase, through the last-named tract. Green's 

 Grant, Thompson & Meserve's Purchase, Sargent's Purchase, in which 

 the top of Mt. Washington is situated, Crawford's Purchase, Nash & Saw- 

 yer's Location, Carroll, Bethlehem, Littleton, and Monroe to Connecticut 

 river, a distance of fifty miles; thence through Barnet and Peacham in 

 Vermont to the western limits of the map. No attempt has been made 

 to traverse the part lying in Maine east of Bean's Purchase, though that 

 is believed to belong to the same series with those first seen within the 

 state. 



In Bean's Purchase the rocks are altogether Montalban. From Mt. 

 Royce to Carter all the strata are said to dip westerly. Between the 

 ridge and the Peabody river there may be two flexures. Concerning the 

 route westward from the Peabody river, or from the Glen house to the 

 summit of Mt. Washington and to the base on the west side, our obser- 

 vations have been numerous, and are fully described upon page 1 16 and 

 Plate VII. The general conclusion reached is, that the mountain is 

 essentially anticlinal in attitude, with several subordinate flexures upon 

 the east side, including the very important synclinal below the Half-way 

 house carrying the squeezed and somewhat faulted basin of andalusite 

 slates. The pitch of the Mt. Washington anticlinal is westerly. Below 



