Shoulder-girdle bones in a bird and three Pterodactyles 113 39. The Notarium from the back of Ornithocheirus 115 40. The shoulder-girdle of Ornithocheirus 115 41. Humerus of Pigeon and Ornithocheirus 119 42. Fore-arm of Golden Eagle and Dimorphodon 120 43. Wrist bones of Ornithocheirus 124 44. Clawed digits of the hand in two Pterodactyles 125 45. Claw from the hand of Ornithocheirus 129 46. The hand in Archæopteryx and the Ostrich 130 48. Slab of Lias with bones of Dimorphodon _To face page_ 143 49. Dimorphodon (restored form) at rest 144 50. Dimorphodon (restored form of the animal) _To face page_ 145 51. Dimorphodon skeleton, walking as a quadruped " " 146 52. Dimorphodon skeleton as a biped " " 147 53. Lower jaw of Dorygnathus 149 54. Dimorphodon (wing membranes spread for flight) _To face page_ 150 55. Pelvis of Dimorphodon 151 56. Rhamphorhynchus skeleton (restored) 161 57. Scaphognathus (restoration of 1875) 163 58. Six restorations of Ornithosaurs 164 59. Ptenodracon skeleton (restored) 167 60. _Cycnorhamphus suevicus_ slab with bones _To face page_ 168 61. _Cycnorhamphus suevicus_ (form of the animal) _To face page_ 169 62. _Cycnorhamphus suevicus_ skeleton (restored) 170 63. _Cycnorhamphus Fraasi_ (restored skeleton form of the animal) _To face page_ 170 64. _Cycnorhamphus Fraasi_ (restoration of the form of the body) _To face page_ 171 65. Neck vertebra of Doratorhynchus from the Purbeck 173 66. Neck bone of Ornithodesmus from the Wealden 173 67. Sternum of Ornithodesmus, seen from the front 175 68. Sternum of Ornithodesmus, side view, showing the keel 175 69. Diagram of known parts of skull of Ornithocheirus 177 70. Neck bone of Ornithocheirus 179 71. Jaws of Ornithocheirus from the Chalk 180 72. Palate of the English Toothless Pterodactyle 181 73. Two views of the skull of Ornithostoma (Pteranodon) 182 74. Skeleton of Ornithostoma 183 75. Comparison of six skulls of Ornithosaurs 192 76. Pelvis of Ornithostoma 195 77. Skull of Anchisaurus and Dimorphodon 199 78.