Upper arm bone, 117 -- Greensand, remains in, 136 -- Lias of Whitby, 147 -- Oolites, 185, 195 V Variation of bones in mammals, 38 -- in Pterodactyles, 229 Variation of bones in vertebræ, 225 Vertebræ, caudal, 89, 92, 203 -- cervical, 173, 179, 203 -- dorsal, 86 Vertebral articulation, 82, 224 -- column, 78 Vulture, neck vertebræ of, 80; tibia and fibula of, 102 Vomer, 147 Vomerine bones, 72 W Wagler, 29 Wagner, Andreas, 30, 148, 231 Walker, J. F., 54 Wealden beds, Pterodactyles in, 55, 84; bones in, 135, 136, 173 Weight of Pterodactyle, 106 Whinchat, 47 Whitby, 33, 135 Williston, Professor W. S., 75, 82, 92, 98, 105, 110 Willow-wren, 47 Wing finger, 116, 130, 133, 151, 178, 197 -- membrane, 32, 121, 140, and frontispiece -- metacarpal, 123; in Dimorphodon, 151; in Ornithostoma, 184; in bats, 131 Wings of Dragons, 16 Winkler, T. C., 231 Woodwardian Museum, 34 Wood-wren, 47 Wrist bones, 122 Würtemberg, 33 Y Yale College Museum, 32 York Museum, 34, 176 Z Zittel, Karl von, 31, 157, 165, 231 Zygomatic arch, 67 PRINTED BY WILLIAM BRENDON AND SON PLYMOUTH