THE TEETH. 



180 



ususal and incorrect method of estimating their age by the horns. 

 Far surer maiks are presented in the teeth. 



THIRD WEEK. 



The mouth of the new-born calf presents an uncertain appearance, 

 depending on the mother having exceeded or fallen short of the ave- 

 rage period of gestation. Sometimes there will be no teeth appearing, 

 but generally, either two central mcisors will be protruding throuc?h 

 the gums, or they will have arisen and attained considerable bulk. ° 



About the middle or close of the second week, a tooth will be 

 added on either side, making four incisors. 



At the expiration of the third week, the animal will have six tem- 

 porary incisors or front teeth. 



MONTH. 



