rocks.
 58. Monograptus priodon.
 59. Halysites catenularia and H. agglomerata.
 60.  Group of Upper Silurian Star-fishes.
 61. Protaster Sedgwickii.
 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.