LIST (GF 
. Didymograptus divarica- 
tus, 
; Diplograptus pristis, 
. Phyllograptus ty pus, 
. Zaphrentis Stokest, . 
. Strombodes pentagonus, 
. Columnaria alveolata, 
. Group of Cystideans, 
. Group of Lower Silurian 
Crustaceans, 
. Ptilodictya falciformis, 
. Ptilodictya Schaffert, 
. Group of Lower Silurian 
Brachiopods, 
. Group of Lower Silurian 
Brachiopods, 
. Murchisonia gracilis, 
. Bellerophon argo, 
. Maclurea crenulata, 
. Orthoceras crebriseptum, 
. Restoration of Orthoceras, 
. Generalised section of the 
Upper Silurian rocks, 
. Monograptus priodon, 
. LHalysites catenularia and 
fT, agglomerata, . 
. Group of Upper Silurian 
Star-fishes, 
. Protaster Sedgwickit, 
. Group of Upper Silurian 
Crinoids, 
. Llanolites vulgaris, . : 
. Group of Upper Silurian 
Trilobites, 
. Pterygotus Anglicus, 
. Group of Upper Silurian 
Polyzoa, 
. Spirifera hysterica, : 
- Group of Upper Silurian 
Brachiopods, 
. Group of Upper Silurian 
Brachiopods, 
. Pentamerus Knightit, 
. Cardiola 
interrupta, C. 
fibrosa, and FPterinea 
subfalcata, . 
. Group of Upper Silurian 
Univalves, 
. TZentaculites or natus, 
. Pleraspis Banksit, 
. Onchus tenuistriatus and 
Thelodus, 
: @encrkaed section of fee 
Devonian rocks’ of 
North America, 
. Psilophyton princeps, | 
ILLUSTRATIONS. 
115. 
IG: 
197. 
. Generalised 
. Prototaxites Logant, 
Stromatopora tuberculata, 
. Cystiphyllum vesiculosum, 
. Zaphrentis cornicula, 
. Heliophyllum exiguum, 
. Crepidophyllum Archiaci, 
. Favosites Gothlandica, 
. Favosites hemispherica, 
. Spirorbis omphalodes and 
S. Arkonensis, 
. Spirorbis laxus and s 
spinultfera, 
. Group of Devonian Tri- 
lobites, 
. Wing of Platephemera 
antigua, 
. Clathropora inter texta, : 
. Ceriopora Hamuiltonensis, 
. Fenestella magnifica, 
. Retepora Phillipst, 
. Fenestella cribrosa, 
. Spirifera sculptilis, 
. Spirifera mucronata, 
. Atrypa reticularts, 
. Strophomena 
rhonbotd- 
alis, 
. Platyceras dumosum, 
. Conularia ornata, 
. Clymenia Sedgz vickit, 
- Group of Fishes from 
the Devonian rocks of 
North America, 
. Cephalaspis Lyellit, 
. Pterichthys cornutus, 
. Polypterus and Osteolepis, 
. LHoloptychius 
nobilisst- 
mus, . ; Y : 
section of 
the Carboniferous rocks 
of the North of Eng- 
land, 
: Odontopteri as Schlotheimii, 
. Calamites canneformis, 
. Lepidodendron Sternbersii, 
. Szgillaria Greseri, 
. Stiemaria ficoides, 
. Trigonocarpum ovatum, 
114. 
Microscopic section of 
Foraminiferallimestone 
—Carboniferous, North 
America, 
Fusulina cylindrica, 
Group of Carboniferous 
Corals, 
Platycrinus tricontadac- 
tylus, . ‘ : : 
161 
164 
165 
167 
168 © 
169 
170 
172 
174 
