AVES. 



95 



between the wiugs ; and the hind leg is exactly that of a Table-ease 



perching bird. The long tail, however, comprises a row of 



twenty slender vertebrse, each bearing a pair of feathers. 



Owing to the fine grain of the stone, the feathers both of 



the wings and the tail are perfectly displayed in impressions, 



which were made when the actual feathers were originally 



buried in the soft limy mud. 



Of the second specimen of the Arc]iBeo])ie)'ijx, now in the 

 Berlin Museum, a plaster cast is placed next to the first 

 example in Table-case 13. It retains the head, which is 

 quite bird-sliaped, though its jaws are provided with teeth 



Fig. 88. — Skull and lower jaw of Archieopteryx siemensi, showing teeth, 

 from the Lithographic Stone (Upper Jurassic) of Eichstadt, Bavaria ; 

 nat. size. (After Dames. Original in Berlin ^Museum. Plaster cast 

 in Table-case 13.) 



in sockets (Fig. 88). It also exhibits the three clawed fingers 

 of the wing. A photograph of the specimen is fixed head 

 downwards on the wall near the window, to show the lizard- 

 like sprawl assumed by the skeleton at the time it was 

 buried. 



