108 



DESCRIPTION OF OPPOSITE PLATE. 



From A to B, cervical vertebrae. 1. spinous process ot the 

 third vertebra; 2, inferior ridge on body of the same; 

 3, styloid prolongation of the transverse process of the 

 same; 4 vertebral foramen of the same; 1', 2'. 3'. 

 if, the same parts in the twelfth vertebra. From B to C. dor- 

 sal vertebrae; 6, spinous process of the first; 7, crest formed by 

 the union of the other spinous processes. From D to B, coccy- 

 geal vertebrae. F, G, head; 8. interorbital septum; 9, foramen 

 of communication between the two orbits; 10. premaxillary 

 bone; 10', external openings of the nose; 11, maxilla; 12, os 

 quadratum; 13, malar bone; H, sternum; 14, brisket nr keel; 

 15, episternal process; 16, internal lateral process; 17. lateral 

 external process; 18, membrane which closes the internal notch; 

 19, membrane of the external notch. I, etc., superior ribs, 20, 

 posterior process of the fifth; J, inferior ribs; K, scapula; L, 

 Coracoid bone; M, forculum— m. m, its two branches; N. hum- 

 erus; O, ulna— 0, radius; P, P', bones of carpus; Q, Q', bones 

 of metacarpus; R, first phalanx of the large diget of the wing, 

 r. second phalanx of the same; R, phalanx of thumb; S, ilium, 

 s', ischium, s". pubis, 2t, sciatic foramen. 22, foramen ovale; 

 T. femur; U, patella; V, tibia, x, fibula, y, single bone of tarsus; 

 T. metatarsus, 23. superior process representing a united 

 metatarsal bone; 24, process supporting the claw; z, etc.. digits. 

 — Chauveaii. 



