VETERINARY DENTAL SURGERY, 35 



almost as soon as the crown of the contiguous incisor 

 is in full place, being carried out by the same move- 

 ment." The deciduous canine of the upper jaw is 

 shed the second year. 



They are small and occupy the position that is 

 eventually taken by the permanent canines. They 

 are very small as compared with the other teeth, 

 being from one-fourth to three-eighths of an inch in 

 length and from one-sixteenth to' one-eighth of an 

 inch in thickness. I have invariably found them 

 present in both colts and fillies, when preparing 

 heads for anatomical specimens, provided the animals 

 from which the heads were taken did not exceed six 

 weeks of age. Up to that time they are thoroughly 

 imbedded in the bones. The shedding of the teeth 

 usually takes place in the spring and early summer. 

 Occasionally we find colts that shed their temporary 

 teeth in the fall and winter; but such instances are 

 comparatively few. 



TEMPORARY DENTITION IN THE OX. 



The temporary teeth of the calf are twenty in 

 number ; eight incisors all below, and twelve molars, 

 six above and six below. They present a dental 

 formula, thus: 



Incisors, J ; Molars, \ |=2O. 



The molars are all up before, or a few days after 

 birth ; but the temporary incisors make their appear- 

 ance at different periods. 



