Chap. IV. § 2.] 



LOWER DAMUDA GROUP. 



57 



Brought forward 



615 3 



72. Light-gray sandstone, felspathic ... ... ... ... 2 



73. Compact sandstone, quartzose ... ... ... ... 3 



74. Black argillaceous shale ... ... ... ... 2 



75. Brown sandstone ... ... ... ... 1 



76. Inferior coal ... ... ... ... 1 



77. Arenaceous under-bed, with fibre-like impressions of plants ... 10 



78. Brown sandstone, micaceous ... ... ... ... 16 



79. Light-gray arenaceous shale ... ... ... ... 3 



80. Gray and brown compact sandstone ... ... ... 21 



81. Greenish-gray arenaceous shales, lightly stained red ... ... 15 



82. Black and gray argillo-arenaceous shale, with hard arenaceous 



bands ... ... ... ... 30 



83. Gray arenaceous shale ... ... ... ... 150 



84. Gray sandstone ... ... ... ... 25 



85. Gray and brown argillaceous shale, micaceous and hard ... 37 

 8G. Brown sandstone ... ... ... ... 3 



87. Gray argillaceous shale ... ... ... ... 10 



88. Brown sandstone ... ... ... ... 4 



89. Dark-gray argillo-arenaceous shale ... ... ... 5 



90. Brown sandstone ... ... ... ... 4 



91. Black argillo-arenaceous shale ... ... ... ... 3 



92. Gray and brown arenaceous shale ... ... ... ... 4 



93. Light-brown sandstone ... ... ... ... 3 



*94. Yellowish -brown argillaceous limestone ... ... ... 1 



95. Light-gray argillo-arenaceous shale ... ... ... 9 



96. Brown sandstone ... ... ... ... 9 



97. Yellow and brown sandstone ... ... ... ... 3 



98. Argillo-arenaceous shale ... ... ... ... 4 



99. Black argillaceous shale ... ... ... ... 6 



100. Light-gray sandstone ... ... ... ... 6 



101. Black, gray, and brown arenaceous shale ... ... ... 9 



102. Inferior shaley coal ... ... ... ... 7 



103. Hard sandstone ... ... ... ... 1 



104. Inferior coal ... ... ... ... 3 



105. Gray arenaceous shaley under-bed... ... ... ... 6 



106. Sandstone, quartzose, and hard, passing into conglomerates. 



Total ... ... 837 2 



The above section, giving altogether a thickness of 837 feet, Avhicli 

 are well seen in the streams and ravines North of the village of 

 Lalbazar, entirely overlies the representatives of the beds seen North 



H 



