GOLDEN EAGLE. 329 



cesses on both ends, which serve as levers upon which 

 the tendons act in a very powerful wing. 



Golden Eagle. 



From what has been already said, the drfferent 

 parts of this as well as of the other sterna which are 

 to follow, will it is hoped be understood without the 

 somewhat clumsy expedient of letters of reference. 



This is the average type of the sternal apparatus 

 of the diurnal birds of prey, to which some are supe- 

 rior and some inferior. The most perfectly formed 

 are the noble hawks or falcons, of which some notion 



