xlii APPENDIX. 



V^169. Mica slate, Enfield. 

 Vl70. Firestone, Warwick. 



171. Firestone, Warwick. 

 \/ 172. Mica slate, Lenox Mountain, Lenox. 



v/l73. Mica slate passing into quartz rock. South Mountain, Northfield. 

 Vl74. Whetstone slate, Wendell. 

 1^175. Mica slate, Saddle Mountain, east ridge. 

 ^^176. Mica slate, calcareous with iron pyrites, Adams. 

 Vl77. Talco-micaceous slate, Boston Corner. 

 Y17S. Mica slate, Saddle Mountain, AVilliamstown. 

 \/l79. Mica slate, Wllliamstown. 

 yi80. Argillo- micaceous slate, Egremont. 

 VT.81. Aluminous slate, Conway. 



182. Native alum, Conway. 



V 183. Mica slate, Russell. 



/184. Mica slate, top of Wachusett. 



V 185. Mica slate. East Rutland. 



186. Talco-micaceous slate, Millville, Mendon. 

 Vl87. Mica slate, West Leominster. 

 n/188. Argillo-micaceous slate, Wllliamstown, west of college. 



189. Mica slate and limestone over the marble, Lanesboi'ough. 



190. Mica slate over limestone. North Ashford. 



191. Mica slate over marble. North Ashford. 



\r 192. Mica slate. Mount Everett, Mount Washington. 



>i' 193. Mica slate, above east slope of Mount Everett. 

 V 194. Mica slate, Sheffield, west of Village. 



v/195. Mica slate with decomposing iron pyrites, Saddle Mountain, Williamstown. 



/ 196. INIica slate, above limestone, Hudson Brook, North Adams. 



197. Talco-micaceous slate with hornblende and iron pyrites, Monson. 

 n/ 198. Talco-micaceous slate with jiyrites, Monson. 

 ^^199. Mica slate, Railroad cut, Monson. 

 v^200. Mica slate, Franklin. 



V 201. Mica slate, Franklin. 



•y202. Mica slate, Spicket Falls, Methuen. 



v203. Augitic mica slate. Heath. 

 v^204:. Augitic mica slate, Sodom Mountain, Southwick. 



^ 205. Mica hornblende and feldspar, apparently of igneous origin, in mica 

 slate, Warwick. 



205. Porous quartz with oxide of iron, Richmond. 



206. Mica slate with garnets, Northfield, South Mountain. 

 -/ 207. Mica slate with garnets, Northfield, South Mountain. 

 7 208. Mica slate with staurotide and garnets, Aubui-n. 



V 209. Mica slate with garnets. Railroad, Middlefield. 



V 210. Garnetiferous mica slate. West Rowe. 



•J 211. Mica slate with staurotide and garnets. South Mount, Northfield. 



212. Iron pyrites. Saddle Mount, Adams. 



213. Mag. ox. iron, Warwick. 



