OSTEOLOGY AND ARTHROLOGY 



The following table shows their classification in some 

 animals : 



VERTEBR/E. 



Ei.CuyER 

 Fig. I. — A Human Skeleton in the Attitude of a Quadruped. To 



GIVE A GENERAL IdEA OF THE POSITION OF THE BONES IN OTHER 



Vertebrates. 



It is worth}^ of notice that in birds the number of the 

 cervical vertebra? is not constant, as in mammals ; they are 



