LIST OP FIGURES . 



Page 



Fig. 76. Cantia arlorescens, sp. nov. ; piece of wood . . . . 261 



77. Ditto ; radial longitudinal section of wood .... 263 



78. Ditto ; tangential section of medullary rays .... 264 



79. Woburnia porosa, Stopes ; transverse section of wood. 268 



80. Ditto ; transverse section of wood 269 



81. Ditto ; longitudinal view of wood-vessel 271 



82. Sabulia Scottii, Stopes ; transverse section of stem . 273 



83. Ditto ; transverse section of wood 274 



84. Ditto ; radial section of medullary ray-cells . . . 276 



85. Hytliia Elgari^ sp. nov. ; cut surface of wood . . . 279 



86. Ditto ; radial section of medullary ray 281 



87. Aptiana radiata, Stopes ; transverse section of stem . 285 



88. Ditto ; transverse section of outer part of stem . . 286 



89. Ditto ; transverse section of wood 287 



90. Ditto ; transverse section of wood 288 



91. Ditto ; radial longitudinal section of medullary ray . 290 



92. Ditto ; tangential section of a multiseriate ray . . 291 



93. Cycadeoidea Yatesii, Carruthers sp. ; external view of 



part of trunk 300 



94. Ditto; transverse section of trunk 302 



95. Ditto; portion of broken end of trunk 303 



96. Ditto ; tracheids from wood-ring 303 



97. Ditto ; surface view showing leaf-bases 304 



98. Cycadeoidea buzzardensis, sp. nov. ; external features 



and broken transverse section 310 



99. Ditto; sketch of broken block of wood 311 



100. Cycadeoidea Yatesii and Cycadeoidea buzzardmsis ; 



outline sketch of leaf-bases ........ 312 



101. Colymbetes Edwards'^ sp. nov. ; diagram of anatomy 



of stem 316 



102. Ditto ; transverse section of pith 318 



103. Ditto ; transverse section of pcrimedullary zone of 



wood 319 



104. Ditto; transverse section of stem 320 



105. Ditto ; transverse section of wood 321 



