Plate II. 



-^L 



SKELETON OF PEREGRINE FALCON, 

 SHOWING THE PROPER POSITION OF THE VARIOUS BONES. 



Explanation : A, skull ; B, upper mandible ; C, lower mandible ; D, cervical vertebrae (9) ; 

 E, humeri (sing, humerus): F, radius; Gr, ulna; H, carpus, or wrist; I and j^ 

 metacarpal bones (3i; /, "knuckle" joint; K, pollex (ilrst digit, ."or "thumb"); 

 K2 and K^, second or "index" digit, and next or third digit; L, pelvis, 

 "ossa innominata" (ilium, ischium, and pubes anchylosedj ; M, femur; N, tibiaj 

 0, fibula; P, metatarse, or " tarso-metarsus " (3, sometimes 4 bones); p, actua. 

 "knee" joint; n, "heel," or tibio-tarsal joint; Q. hallux (first or "big" toe), called 

 in ornithology, the "hind" toe; B, foux-th (or outermost) toe; S S, sternum, ox 

 breast bone. 



