II RELATIONSHIP TO REPTILES 35 
fossil is now at South Kensington. In 1877 a more 
perfect example of a bird of the same species was 
found and is to be seen at Berlin. 
Fic. 13.—Head of Archzopteryx. 
This ancient bird was about the sizeof arook. His 
tail was long, consisting of twenty vertebre, at least 
the twelve hindmost bearing a pair of well-developed 
Fic. 14.—Part of wing of Archzopteryx. 
c, carpal bone ; D, 1, 2, 3, digits ; m, metacarpal; k, radius; vu, ulna. 
feathers. His breast-bone seems to have been keeled. 
His wing was strong and well-developed, the humerus 
remarkably big at the near end, the bones of the fore- 
D2 
