426 STRATIGRAPIIICAL GEOLOGY, 



relation of mica schist to the underlying rocks. East of the Hill Village, 

 and near Fall brook, there is a very narrow band of mica schist between 

 the argillaceous mica schist and the eruptive granite, but it has not been 

 followed either north or south. We have on West mountain, in Keene, 

 very much the same succession of rock as in the east part of Westmore- 

 land. A section (Fig. 80) will be found in the following chapter. 



In Chesterfield the mica schist occupies a very irregular area. This is 

 particularly true of its eastern extension. Just west of Factoryville we 

 have a slaty gneiss that dips at a small angle to the south. At the vil- 

 lage, in the stream at the Turning shop, there is a quartz breccia, and 

 directly east there is quartzite ; then south of this, and on the road run- 

 ning east, we have the mica schist, and its greatest width north and south 

 is not more than two miles. The eastern limit of the principal area is 

 not far from school-house No. 14. There is, however, a narrow band of 

 schist east of the band of protogene gneiss at the forks of the road east 

 of school-house No. 14. South of W, Bingham's the mica schist has a 

 laminated structure, and is very much contorted, but the general dip is 

 southerly. This area is the limit southward of this band of mica schist. 

 The following are some of the dips that have been noted : 



Unity. At G. Gilmore's, N. 40° E. 20°, 



At forks of road west of P. Smith's, N. 80° At A. J. Straw's, variable and contorted. 



E. 30°. Near A. H. Church's, N. 80° E. 14°. 



At J. Sleeper's, N. 80° E. 15°. I mile north of T. & J. T. Murdough's, N, 

 At A. C. Sleeper's, S. 60° E. 12°, and S. 10° W. 8°. 



30° E. 20°. South-east of N. Haywood's, N. 20° W, 

 At O. Sleeper's, S. 68° E. 20°, 13°. 



At Col. E. J. Glidden's, E. 8°. Walpole. 



At G. Breed's, S. 30° E. 15°. At R. Leonard's, strata nearly horizontal. 



Acworth. Chesterfield. 



At Acworth Centre, S. 30° W. 22°. East of Factoryville, S. 10° E. 13°. 



Calciferous Mica Schist, 



There are three limited areas of the Calciferous mica schist. The 

 most northern is in Charlestown, west of the quartzite. It extends from 

 the Cheshire bridge southward along the Connecticut river. It consists 

 chiefly of argillaceous bands, which have an uneven cleavage, and the 

 rock breaks up into irregular fragments, on account of the swelling of 



