THE BONY PALATES OF MEMBERS OF THE OSTRICH TRIBE COMPARED 

 WITH THOSE OF SOME MODERN BIRDS, TO SHOW THE DEGENERATION 

 AND CHANGE OF POSITION OF THE VOMER (Vo) AND THE TRANS- 

 FORMATION OF THE PALATINE BONE (Pa) AND PTERYGOID (Pt). 



A. Ostrich. B. Fowl. C. Rhea. D. Tinamou. E. Gull. F.G. Penguin. 



140] 



