APPENDIX. ll 



/lOO. Ferruginous conglomerate, Montague. 



V 101. Calcareous alluvium, Springfield. 



V 102. Calcareous breccia. West Stockbridge. 

 >/l03. Hornstone, (boulder,) Plymouth. 

 V'lOd. Galena from a boulder, Dedham. 



105. Pyrula carica, (47 feet below the surface,) Nantucket. 



106. Pyrula carica, worn, Nantucket. 



107. Natica heros, Nantucket. 



108. Crepidula fornicata, Nantucket. ! 



109. Venus Castanea, Nantucket. 



110. Mactra Nantucket. 



111. Clay, Amherst. 

 vT.12. Clay, Leominster. 



113. Clay, Leominster. 



114. Loamy clay, Leominster. 



V 115. Clay, West Springfield. 



116. Clay, Palmer. 



117. Clay, Taunton. 



118. Clay, rhomboidal, West Springfield. 

 Vll9. Clay, rhomboidal. West Springfield. 



120. Clay, rhomboidal. West Springfield. 



Vl21. Clay, rhomboidal, Deerfield. 



122. Clay, rhomboidal, Deerfield. 



123. Clay, Fuller's earth, Northampton. 



Claystone Concretions. Form of a Sphere. 



\/124. Claystone concretions. South Hadley. (Plate 16, figure 25.) 



V 125. Claystone concretions, Holyoke. 

 v"' 126. Claystone concretions, Holyoke. 



127. Claystone concretions, Holyoke. 



128. Claystone concretions, Holyoke. 

 . 129. Claystone concretions, Holyoke. 



V 130. Claystone concretions, Amherst. 



131. Claystone concretions, Hadley. 



Form of an oblate Spheroid. 



132. Claystone concretions, Hadley. 



133. Claystone concretions, Hadley. 



134. Claystone concretions, Agawam. 



135. Claystone concretions, Agawam. 



136. Claystone concretions, Wethersfield, Connecticut. 



137. Claystone concretions, Amherst. 



V 138. Claystone concretions, Amherst. 



139. Claystone concretions, Amherst. 



140. Claystone concretions, Amherst. 

 \/141. Claystone concretions, Amherst. 

 >/^142. Claystone concretions, Holyoke. 



