GENERAL PRINCIPLES APPLICABLE TO THE STUDY OF ALL THE BONES. 11 



The number of bones entering into the composition of the skeleton of the 

 principal domesticated animals, arrived at the adult period of life, varies accord- 



Fig. 7. 



SKELETON OF THE SHEEP. 



ing to the species. They are apportioned to the regions of the trunk and limbs 

 just mentioned, in the manner indicated in the following table : — 



AeTICLE II. — GElfEEAL PkINCIPLES APPLICABLE TO THE StUDY OF ALL 



THE Bones, 



The description of a bone comprises its name, situation, shape, internal cori' 

 formation, structure, and mode of development. 



' One lumbar vertebra less is found in the Ass, and sometimes also in the Mule. 



* The 08 penis has not been included. 



' The sacrum is reckoned as a single bone, and the number of coccygeal vertebrae at aa 

 average of 16 for the Horse, 18 for the Ox, 22 for the Pig, and 18 for the Dog. 



* The OS hyoides is reckoned as a single bone. 



