324 GEOLOGY OP THE NARRAGANSETT BASIN. 



Feet. Indies. 



87. Graphite, impure 1 6 



88. Sandstone 2 lu 



89. Shale, black and highly carbonaceous 1 6 



90. Coal - 



91. Sandstone 3 <J 



92. Quartz vein 3 



93. Sandstone . . .' 1 4 



94. Quartz vein 1 



95. Sandstone, gray 3 9 



96. Slate, drab and hard 2 3 



97. Slate, same as above ' 3 2 



98. Sandstone 8 



99. Shale, carbonaceous 1 



100. Sandstone, fine grained 1 4 



101. Shale, carbonaceous 4 



102. Sandstone, gray 1° 



103. Sandstone, dark gray 3 



104. Sandstone, lighter gray 5 



105. Sandstone, dark gray 1 4 



106. Shale, carbonaceous 9 8 



107 3 1 



108. Sandstone, fine, filled with carbonaceous matter 1 6 



109. Sandstone 1 8 



110. Sandstone, coarser than above 1 3 



111. Sandstone, with thin seams of carbonaceous matter 4 



112. Shale, black and carbonaceous, dip 43° 1 9 



113. Sandstone, dark gray 4 



114. Shale, arenaceous, filled with carbonaceous matter 2 



115. Slate, black 1 8 



116. Sandstone, like that at 120 feet clown 8 



117. Shale, carbonaceous 1 10 



118. Shale, arenaceous, with carbonaceous matter 1 2 



119. Sandstone 4 



120. Shale, arenaceous, with thin seams of carbonaceous matter 6 4 



121. Shale, highly carbonaceous 2 



122. Sandstone, hard and fine grained 1 



123. Argillite 4 9. 



124. Sandstone 1 



125. Argillite 10 



126. Sandstone, hard and fine, with small calcite veins 1 3 



127. Argillite, carbouaceous 2 



128. Shale, arenaceous, containing, from one-eighth to one-fourth inch apart, 



very thin layers of granite 3 



129. Sandstone, gray 3 3 



130. Coal, filled with quartz, iron pyrite, and chlorite 1 



