Dip and Direction of the Strata. 



339 



Direction. Dip. 



Westfield to Blanford, N. and S. 70* to 90° West. 



Chester, Worthington, (east part,) J 



Chesterfield, (west part,) > N. and S. nearly 90° W. 



Cummington, (east part,) ) 



Cummington, (west part,) N. and S. nearly 90 Q E. 



Heath, N. and S. nearly 90° W. 



Colraine, N. and S. nearly 90° E. 



Whately, N. several degrees E. 70° to 90° East. 



Conway, Shelburne, Leyden, ) N , s 2f)0 tn 7(]0 Fast 



Buckland, and Ashfield, \ W " and b ' 2U to 7U ^ ast 



Leyden, (at the " Glen,") N. and S. 90° 



It will be seen that the general direction of the strata in this range 

 is north and south, and the dip very great ; for the most part nearly 

 vertical. The most remarkable exception is that which occurs in the 

 northwest part of Goshen, where the strata run almost east and west 

 and have a comparatively small dip. Although these strata are re- 

 markably regular, yet I cannot but believe that this peculiarity has 

 resulted from the protrusion of that vast mass of granite which lies 

 a little east of the slate in that town, in Williamsburgh, Northampton, 

 Whately, &c. I can easily conceive how a vast mass of slate, might 

 be thrown into an anomalous position over a considerable extent of 

 surface, without affecting the continuity of the planes of stratification 

 in limited spaces. 



In the Connecticut Valley. 



Direction. Dip. 

 From Fitzwilliam to Richmond, (N. H.) N. and S. East. 

 From Richmond to Winchester, (N. H.) N. and S. 30° to 40° West. 

 From Winchester to Northfield, N. and S. nearly 90° East. 



In Northfield, N. E. and S. W. 30° West. 



Do. west side of the river, N. and S. 20° to 60° East. 



In this range are frequent alternations of gneiss and protruding 

 masses of granite ; and in the lower part of New Hampshire there is 

 a good deal of irregularity in the dip and direction of the strata. 

 That region needs farther examination and elucidation. 



