APPENDIX. xiii 



V 186. Claystone concretion, Hadley. 

 ' 187. Claystone concretion, Hadley. 



V 188. Claystone concretion, Hadley. (Plate 15, figure 4.) 

 \l 189. Claystone concretion, Hadley. 



\ 190. Claystone concretion, Hadley. 



\/191. Claystone concretion, Hadley. 



192. Claystone concretion, Hadley. 



■^193. Claystone concretion, Hadley. 



v'194. Claystone concretion, Hadley. 



*''195. Claystone concretion, Hadley. 



vl96. Claystone concretion, Hadley. (Plate 15, figure 8.) 



V197. Claystone concretion, Hadley. 



"^198. Claystone concretion, Hadley. 



■'' 199. Claystone concretion, Pladley. 



V200. Claystone concretion, Hadley. (Plate 15, figure 11.) 



\l 201. Claystone concretion, Hadley. 



-- 202. Claystone concretion, Hadley. 



v'203. Claystone concretion, Hadley. 



\l 204. Claystone concretion, Hadley. 



■■/ 205. Claystone concretion, Hadley. 



206. Claystone concretion, Hadley. (Plate 16, figure 27.) 



Lenticular Claystone Concretions. 

 -J 207. Claystone concretion, Amherst. (Plate 16, figure 21.) 



208. Claystone concretions, Amherst. 



209. Claystone concretions, Amherst. 



Cylindrical Concretions. 

 v^210. Claystone concretion, Agawam. 



211. Claystone concretion, Agawam. (Plate 17, figure 55.) 

 ^I'"212. Claystone concretion, Hadley. » 



213. Claystone concretion, Holyoke. 



Compound forms, &,'c., of Claystone Concretions. 



V 214. Claystone concretions, North Adams. 

 --N/^215. Claystone concretions. North Adams. 



n/'216. Claystone concretions. North Adams. 

 ^ 217. Claystone concretions, North Adams. 



218. Claystone concretions. North Adams. 



219. Claystone concretion, South Hadley. 



V 220. Claystone concretion, Holyoke. 

 ' '221. Claystone concretion, Holyoke. 



Ferruginous Clay Concretions. 

 222. Ferruginous concretions in clay, Deerfield. 

 "/ 223. Ferruginous concretions in clay, Deerfield. 



224. Ferruginous clay concretions, South Hadley Canal. 



