LIST OF ILLUSTRATIONS. 



XI 



KIG. 



64. 

 65. 



66. 



67. 

 68. 



69. 

 70. 



71. 

 72. 



73. 



74. 



74«. 



75. 



76. 

 76a. 



77. 



78. 



79. 

 80. 



81. 



82. 



83. 

 84. 



86. 

 87. 

 88. 



89. 

 90. 

 91. 

 92. 



93. 

 94. 



'95. 



96. 



97- 



98. 



99. 



100. 



lOI. 



102. 

 103. 



Silurian Sea-snails 

 Squid {Loligo) .... 

 Pearly Nautilus {/Vouri/m pcmpilius) 

 Orthoceras ..... 

 GotHphoceras .... 



Liiuitcs 



Nautilus Avonensis (Dn.) . 



Goniatites crenistria (Philips) 



Ceratites noJosus (Schloth) . 



Ammonites Jason (Reinecke) 



Suture of Ammonites componens (Meek) 



Cretaceous Ammonitidri' 



Belemnite ....... 



Bclemnoteuthis anttquiis 



Cambrian Trilobites .... 



Transverse section of Calymene. A Silurian Trilobite . 

 Burrows of Trilobite and of modern King-crab 

 Silurian Trilobites ..... 



Devonian and Carboniferous Trilobites 



Palaeozoic Ostracod Crustacecns . . . . . 



Pterygoms anglicus ....... 



Amphipeltis paradoxus (SrJter) 



Anthropahimon Hit liana (Du.) . 



Frontispiece^ Cordaites, of the group of Dory-Cordaites 

 Protannularia Harknessii (Nicholson) .... 

 American Lower Silurian Plants ..... 



Eopteris Alorieni (Saporta) 



Fragment of outer surface of Glyptcdendron of Claypole 

 Psilophyton princeps (Dn.) . . . . . ' . 

 Trunk of a Devonian Tree-fern (Caulopteris Lockivoodi, Dn. 

 Frond of Archa:opteris Jacksoni (Dn.) 

 Portion of a branch of Leptcphleum rhombicum (Dn.). 



Calamites radiattis (Brongniart) 



A Devonian Taxine Conifer {Dadoxylon ouangondianum, Dn. 



Group of Devonian Fruits, etc 



Structures of the o'dest-known Argiospermous Exogen {Sy 



ringoxylon mirabile, Dn.) . . . , . 



Asterophyllites parvula 'Dn.) and Sphenophyllum antiquum 



(Dn.) 



Calamites ..... 

 Carboniferous Ferns 

 Carboniferous Tree-ferns 

 Lepidodend; i corrvgatum (Dn.) . 

 Sigillarice of the Carboniferous . 

 Trigonocarpuii Hookeri (Dn.) 

 Frontispiece. Pteraspis. Restored 

 Lower Silurian Conodonts . 

 Lower Carboniferous Conodont . 



i'A(;k 

 70 



7« 

 72 

 73 

 73 

 73 

 74 

 74 



76 

 76 



77 

 78 

 78 



79 

 80 



81 



82 



83 



f3 

 84 



85 



85 



88 



9' 

 92 



93 

 94 

 95 

 97 

 98 



98 



99 

 100 



lOI 



102 



103 

 104 



105 

 107 

 108 

 109 

 III 

 116 

 118 

 119 



