TWENTY MONTHS. 



71 



Fig. 61. 



Twenty Months (Figs. 59, 60, 61). — This mouth comes from a 

 thoroughbred colt, which was. grain-fed from birth. It represents more 

 use than should be at this age. The inferior corner teeth are leveled on 

 their anterior border ; the superior corners are somewhat worn, but not 

 even comparatively to the degree of use of the pinchers and interme- 

 diates. The inferior pinchers are completely worn, and the inferior in- 

 termediate teeth are leveled ; the incisive arch has become less convex, 

 but not wide enough for a two-year-old ; a bit of the gum still remains 

 around the roots. 



