i_.
62. Group of Upper Silurian Crinoids.
63. _Planolites vulgaris_.
64. Group of Upper Silurian Trilobites.
65. _Pterygotus Anglicus_.
66. Group of Upper Silurian _Polyzoa_.
67. _Spirifera hysterica_.
68. Group of Upper Silurian Brachiopods.
69. Group of Upper Silurian Brachiopods.
70. _Pentamerus Knightii_.
71. _Cardiola interrupta, C. fibrosa_, and _Pterinoea
subfalcata_.
72. Group of Upper Silurian Univalves.
73. _Tentaculites ornatus_.
74. _Pteraspis Banksii_.
75. _Onchus tenuistriatus_ and _Thelodus_.
76. Generalised section of the Devonian rocks of North America.
77. _Psilophyton princeps_.
78. _Prototaxites Logani_.
79. _Stromatopora tuberculata_.
80. _Cystiphyllum vesiculosum_.
81. _Zaphrentis cornicula_.
82. _Heliophyllum exiguum_.
83. _Crepidophyllum Archiaci_.
84. _Favosites Gothlandica_.
85. _Favosites hemisphoerica_.
86. _Spirorbis omphalodes_ and _S. Arkonensis_.
87. _Spirorbis laxus_ and _S. Spinulifera_.
88. Group of Devonian Trilobites.
89. Wing of _Platephemera antiqua_.
90. _Clathropora intertexta_.
91. _Ceriopora Hamiltonensis_.
92. _Fenestella magnifica_.
93. _Retepora Phillipsi_.
94. _Fenestella cribrosa_.
95. _Spirifera sculptilis_.
96. _Spirifera mucronata_.
97. _Atrypa reticularis_.
98. _Strophomena rhomboidalis_.
99. _Platyceras dumosum_.
100. _Conularia ornata_.
101. _Clymenia Sedgwickii_.
102. Group of Fishes from the Devonian rocks of North America.
103. _Cephalaspis Lyellii_.
104. _Pterichthys cornutus_.
105. _Polypterus_ and _Osteolepis_.
106. _Holoptychius nobilissimus_.
107. Generalised section of the Carboniferous rocks of the
North of England.
108. _Odontopteris Schlotheimii_.
109. _Calamites cannoeformis_.
110. _Lepidodendron Sternbergii_.
111. _Sigillaria Groeseri_.
112. _Stigmaria ficoides_.
113. _Trigonocarpum ovatum_.
114. Microscopic section of Foraminiferal
limestone--Carboniferous, North America.
115. _Fusulina cylindrica_.
116. Group of Carboniferous Corals.
117. _Platycrinus tricontadactylus_.
118. _Pentremites pyriformis_ and _P. conoideus_.
119. _Archoeocidaris ellipticus_.
120. _Spirorbis Carbonarius_.
121. _Prestwichia rotundata_.
122. Group of Carboniferous Crustaceans.
123. _Cyclophthalmus senior_.
124. _Xylobius Sigillarioe_.
125. _Haplophlebium Barnesi_.
126. Group of Carboniferous _Polyzoa_.
127. Group of Carboniferous _Brachiopoda_.
128. _Pupa vetusta_.
129. _Goniatites Fossoe_.