XXX APPENDIX. 



—^100. Talcosc aggregate, conglomerated, "Walpole. 

 101. Talcose aggregate, conglomerated, Newbury. 



— 102. Amphiboliu aggregate, Middletown, Rhode Island. 



103. Varioloid rock, Saiigus. 



104. Varioloid rock, Brighton. 



105. Varioloid rock, Hingham. 



106. Varioloid rock, Nantasket Beach. 

 —■107. Varioloid rock, Hingham. 



■^ 108. Varioloid nodules quartz and epidote, Brighton. 



— - 109. Varioloid rock, approaching porphyrj-, Needham. 



>/110. Amj'gdaloid, passing into siliceous slate, Newport, Rhode Island. 



■~111. Siliceous slate, porphyritic, Newport, Rhode Island. 



~ 112. Siliceous slate, porphyritic, Newport, Rhode Island. 



— 113. Siliceous slate, with veins of granite, Newport, Rhode Island. 

 ■^ 114. Siliceous slate, Avith veins of granite, Nahant. 



""115. Siliceous slate, with veins of granite, Nahant. 



~ 116. Siliceous slate, passing into chert, Nahant. 



— 117. Jasper, Newport, Rhode Island. 



""118. Heliotrope, Newport, Rhode Island. 



119. Clouded jasper, (compact feldspar ?) SauTus. 



•* 120. Metamorphic slates, Duxbury. 



~121. Metamorphic slates, Duxbury. 



V" 122. Jasper, (red compact feldspar,) Saugus. 



\/'123. Jasper, (red compact feldspar,) Saugus. 



. — 124. Zoisite, in amphibolic aggregate, Middletown, Rhode Island. 



\ 125. Breccia, fragments porphyry, Nantasket Beach. 



\/126. Metamorphic slate passing into trap, Kent's Island, Newbury. 



\rl27. Metamorphic slate passing into trap, Kent's Island, Newbury. 



v'^128. Quartzose reddish slate, Kent's Island, Newbury. 



\ 129. Talcose slate, quartz in grains, Wrentham, south part. 



yl30. Slaty porphyry, somewhat mechanical, South Natick. 



•/131. Varioloid rock, South Natick. 



V 132. Varioloid rock, Hingham. 



V 133. Conglomerated clay slate, Slate Quarry, Harvard, 

 ■- 134. Conglomerated clay slate, Slate Quarry, Harvard. 



V'135. Conglomerated clay slate, Slate Quarry, Harvard, 



V 136. Conglomerated clay slate, Slate Quarry, Harvard. 



V 137. Conglomerated mica slate, Bellingham. 



n/138. Conglomerated mica slate, Bellingham. 



V^139. Conglomerated mica slate, Bellingham. 



>/140. Mica slate, associated with last three numbers. 



^"141. Junction of the mica slate and conglomerate, Bellingham. 



142. Spangled mica slate associated with the conglomerate, Bellingham. 



143. Conglomerated mica slate, Wickford, Rhode Island. 

 vl44. Conglomerated mica slate, Wickford, Rhode Island. 



■/" 145. Mica slate associated with conglomerate, Wrentham, south part. 



146. Bastard mica slate, brecclated, Wrentham. 



