I08 STKATIGRAPIIICAL GEOLOGY. 



The Bethlehem group probably extends north-easterly to the neighbor- 

 hood of the Pond of Safety in Randolph. The following numbers of the 

 catalogue in Chapter II appear to belong to this series: 665, on Randolph 

 mountain; G^^j, a mile north of the Pond of Safety — both in Randolph; — 

 the following in the south-east part of Jefferson: 683, near the Mt, Adams 

 house; 685, S. P. Martin's; 686, B. F. Read's. Also, 684, from Owl's 

 Head in Carroll, near the Jefferson line. In Whitcfield, Nos. 701-709, 712, 

 719, and 722 seem to be of this age. Very likely 710 and 711, which are 

 hornblende schist, may be varieties of this formation. The northerly 

 boundary of the formation in Whitcfield would seem to extend from the 

 south-eastern part, past J. Lindsey's, south of the village to near M. 

 Bowles's. It then extends southerly, crossing the Bethlehem line about 

 a mile north of the Wing road. Near the south line of the town upon 

 the eastern road the features of the typical rock are as distinct as in 

 Bethlehem. On Kimball's hill the layers nearly touch some of the Coos 

 mica schists. Farther north they come in contact with the Lake or 

 common gneiss. Epidotic and hornblendic masses are contained in the 

 Whitcfield area of this formation. Near J. Lindsey's the rock contains 

 hornblende and molybdenite. Near A. D. Sanborn's there is also molyb- 

 denite in a quartz vein. 



Carroll has not been thoroughly explored. In the north-west portion, 

 near C. E. King's, a great many loose fragments, which must be in place 

 close by, belong to the spotted variety of this formation, corresponding 

 thus to the ledges near the Twin Mountain house. The country between 

 these localities, about five miles in extent, is covered by drift and bor- 

 dered much by forests, so that much knowledge of the ledges is imprac- 

 ticable. Cherry mountain affords us specimens of this formation, though 

 nothing is known of the position of the strata there. I think there are 

 several ledges upon the east side of Beech hill in Carroll, which remain 

 to be examined. 



In the valley or west part of Franconia all the ledges are concealed by 

 drift. Back of J. McDonald's, on the flank of Mt. Haystack, the gneiss is 

 less characteristic than usual, and there are interstratified with it seams 

 of hydro-mica schist, containing magnetite (46, 47) and nearly compact 

 feldspars. The Bethlehem rock is exposed also higher up the mountain, 

 about a mile west of Haystack pond, and also on the peak next the cone 



