DENTITION AND AGE AS SHOWN BY TEETH, ETC. 305 



The name "Bishoping " is derived from the rascal who in- 

 vented it: 



At nine the mark will be worn out of the middle pair of 

 upper incisors, and they will have the appearance of the lower 

 ones as described at six. 



At ten the second pair of upper nippers will have the mark 

 worn out of them, presenting the appearance of the lower jaw at 

 seven. 



At eleven the upper corner cutters will have the mark worn 



PROFILE VIEW 07 THE HEAD AND FACE. ' 



1. Occiput. 7. Malar bone 



2. Parietal bone. 8. Posterior maxillary bone. 



3. Frontal bone 9 — 11. Nasal bone. 



4. Petrous portion of temporal bone. 10. Anterior maxillary bone. 

 5 Zygomatic arch 11. Temporal fossa. 



6. Lachrymal bone. 12. 13. Lower jaw. 



The bones op the pace, . including the lower faw 



out, and the upper jaw will correspond to appearance of lower 

 at eight. 



After the disappearance of the marks the best and almost 

 only means of information concerning age are the indications 

 presented by the wear and tear, and these can only furnish ap- 

 proximate certainty. 



After nine years it is somewhat difficult to determine the 

 exact age of the horse from his teeth, which generally grow in 

 length and are more in a line with the jaw. A strong pre- 

 20 



