THE POINTS OF THE HORSE, ETC. 



43 



The teeth become lo?iger and project fomvards with age, instead of Teeth get 

 meeting each other in the perpendicular or nearly so. long and 



project. 



At and after seven there is a distinct notch on the upper corner Notch in 

 incisor, where it overlaps its fellow in the lower jaw. It is frequently the corner 

 broken off and sometimes removed by unscrupulous persons. tooth. 



12. — Seven 3'ears. 



At ten years " Galvayne's mark," a depression on the outer side of the Gal- 

 upper corner incisor, appears ; it reaches half way down the tooth at fifteen, vayne' 

 to the bottom at twenty, is half grown out at twenty-five and disappears at mark, 

 thirty. 



All changes appearing in the central teeth are seen in the laterals 

 the following year and in the corners a year later. 



