xiv ILLUSTRATIONS 



25. HEAD OF GREEN LIZARD (DORSAL ASPECT). . To faCC 'j). 97 



26. WALL LIZARD . . . . . „ 98 



27. TAIL OF SLOW-WORM IN PROCESS OF FRACTURE . ,, 106 



28. DISSECTIONS OF FRACTURED TAIL IN LIZARDS . ,, 108 



DIACxRAMS. 



FIG. 1. ARRANGEMENT OF TAIL MUSCLES . . . 110 



5, 2. RELATION OF CAUDAL SCALES TO FRACTURE . .111 



,, 3. SECTION OF TAIL . . . . .112 



