GEOLOGY OF THE CONNECTICUT VALLEY DISTRICT, 



447 



HORNBLENDE ROCK. 

 Northjield. 



1 6, 1 8, Hornblende schist. 



19, Epidotic hornblende schist. 

 Bcniardston. 



17, Hornblende schist. 



Hinsdale. 

 46-43, 50-52, Hornblende schist. 

 49, Epidotic nodule in 48. 



cm. 



52 a, Hornblende schist. 



QUARTZITE. 

 Vei'jion. 

 53-56, 57, 58 a, 59, 62, 70, Ouartzite. 

 57, Conglomerate. 



Beriiardston. 

 14, 63, 64, 67-69, 93, Quartzite. 

 66, Quartzite, with mica blotches. 



Hinsdale. 

 71-77, 81, 82, 86-88, Quartzite. 



78, 83, Bluish quartzite. 



79, Feldspathic quartzite. 



80, Sandstone. 



A^orthjield. 

 89, Conglomerate. 



Winchester. 

 90-91, Conglomerate. 

 92, Quartzite. 



HELDERBERG LIMESTONE. 



94, Large crinoid, Williams's quarry, Ber- 



nardston. 



CAMBRIAN SLATES AND SILI- 

 CEOUS BEDS. 

 Verrion. 



95, 98, 102, Argillaceous schist. 



96, 97, Ferruginous quartzites. 



99, loi, 103, Quartzite. 



100, White quartz in 99. 



Chesterfield. 

 104, 105, Quartzites, opposite Brattleboro\ 



Cidlford. 

 Ill, Conglomerate. 



1 1 2-1 14, Conglomerate, with greenish min- 

 eral. 

 1x6, Sandstone. 



117, Talcose conglomerate. 



118, Reddish quartz. 



119, Conglomerate. 



120, Compact quartzite. 



CAMBRIAN. 

 Bernardston. 

 106, 107, 127, Clay slate. 



108, Argillaceous schist with 107. 

 131, 132, Wrinkled slate. 



Cnilford. 



109, Clay slate. 

 no, Novaculite. 



l^ernon. 



121, 122, 125, Argillaceous schists. 

 124, Blackstone. 



COOS SLATES AND SCHISTS. 

 Bernardston. 

 128, 129, Siliceous micaceous rock. 

 130, 138, 140-142, Pimpled slates. 

 133-137, Argillaceous schists. 

 139, Staurolite slate — Purple's quarry. 



Vernon. 

 163-166, Staurolite mica schist. 



Northfield. 

 167-171, Mica schist. 



Section along the road from West North- 

 field to the state line, and the?ice to the 

 second road crossing the line. 



143, Quartzite. 



144, 145, Micaceous quartzite. 



146, Gneiss. 



147, Argillo-mica schist. 



148, Hornblende schist. 



149, Micaceous quartzite. 



150, Breccia. 



151, Argillo-mica schist. 



152, Gneiss. 



153, Compact hornblende schist. 



154, 155' 156, Staurolite mica schist. 



