GEOLOGY OF THE CONNECTICUT VALLEY DISTRICT. 



345 



265, Quartz vein. 



269, 274, 279, 281, Slaty layers. 



RAXGE FKOM J— 6 TO NEAR B — 12. 



2S6, 287, 293, 294, 297, Green schists. 

 288-292, 295, 296, Argillitic quartzites. 



Main Range — Divided into small 



Areas. 

 Between Lines U and V, east of i i . 



298, 301, 302, 304-307, 309-318, 320-322, 

 Argillitic quartzite. 



299, 300, Slaty layers. 

 303, Greenish schist. 

 308, Ferruginous slate. 

 319, Femiginous sandstone. 



Between Lines S and T. 

 3-3-333^ Argillitic quartzite. 



334, Slate. 



Between S and R. 



335, Conglomerate, argillitic quartzite peb- 

 bles in argillaceous paste. 



336-339, 342-346, Argillitic quartzite. 

 340, 341, Dolomitic slate. 



Between Lines R and O. 

 347, 348, 350-361, 363-376, Argillitic 



quartzite. 

 349, Conglomerate like 335. 

 362, Quartz vein. 



Between N and M. 

 377, 380-390, Argillitic quartzite. 

 378> 379, Greenish schist. 



Between M and L. 



391-395, 398-400, 402, 404, 406-416, 418- 



421, 423-431, Argillitic quartzite. 



396, 405, Argillitic quartzite — ferruginous. 



397, 401, 432, Grayish schist. 

 403, Slate. 



417, Grit, with ferruginous spots. 



West of Line ii and East of Aurif- 

 erous Conglomerate Ranges. 

 Between V and O. 



433, 436, Greenish schists. 

 VOL. IL 44 



434. 435, 437, 43^"^, 444-447. 449-457, 459. 

 460, Argillitic quartzites. 



439, 458, Quartz vein. 



440, 441, 448, Slate. 

 442, 443, Dolomitic slate. 



Between O and L. 



461, 463, 464, 465-474, 476-4S6, 488-493, 

 Argillitic quartzite. 



462, 475, 487, Schists somewhat ferrugi- 

 nous. 



Between L and G. 



494-499, 501-506, 508, 509, 512-523, Ar- 

 gillitic quartzite. 



500, Quartz vein. 



507, Schist, with calcareous incrustation. 



510, 511, Schists — ferruginous. 



524, Dolomitic slate. 

 West of Conglomerate Ranges. 



525-529. 536, 539. Slates. 



530-533. 535. 538. 540-544. 546, 547. Ar- 

 gillitic quartzite. 



534. 537. Dolomite. 



545, Greenish schist, with ferruginous 

 spots. 

 Miscellaneous Localities. 



548, 550-554, 557-561, Argillitic quartzite. 



549, Dolomite. 



555, Drab conglomerate. 



556, 562, Shale. 



Other Localities in Lyman. 

 564, "Stevens's fertilizer." 

 565,567-570, 573-575. 577. Argillitic 



cjuartzites. 

 566, 571, Dolomite. 

 572, 576, Conglomerate. 



Narrow Bands of Slate inclosed in 

 Lyman Group. 



578-588, Slate. 



589, Argillitic quartzite. 



