?,l 



.\r,F_ OF CATTLE. 



FigLue 1. — Teetll of c; 

 birtli. fell■J^vinE the first 

 incisors, milk teetli. 



Figure '2. — Teeth at t\vn 

 \\-eeks old showing four tem- 

 porary incisors. 



Figure 3. — Teeth at three 

 weeks old, showing 

 cisors. 



Figure 4. — Teeth at one 

 month old, showing 

 cisors, or full set. 



Figure o. — Teeth at six or 

 eight months old, showing wear 

 on first two, or centra] teeth. 



Figuif 6. — Teeth at ten 

 months old, showing absorjjfion 



first two pair 

 hnwinc; 



if teeth, and wear of two outside pairs, 

 alisnrpfinn in all llle nipjiers, except out- 



Figure 7. — Teeth at twelve months old 

 side pair, and wear in these. 



Figure 8. — Teeth at fifteen months old, showing absorption and wear in all the temporary 

 iupper.s. 



Figure 9. — Teeth at eighteen months oid, showing t«-o first permanent incisors (1-1) and 

 next two pairs (2-2) and (3-3.1, growing and pushing upwards toward the surface; also (4-4. 

 5-5 and 6-6) showing absorption. At (8-8) is shown the alveali, or cells for the teeth. 



Fi^re 10. — Teeth at two years old past, showing four permanent incisors, and four 

 temporary ones, absorption nearly complete; also marks of wear on two first pairs. 



Figure 11. — Teeth at three years past, showing six permanent nippers, and two outside 

 temporary ones nearly gone; also wear on two central pairs. 



Figure 12. — Teeth at four years past, showing eight permanent incisors — the full mouth 

 — and complete complement; also wear on all but outside teeth. 



Figure 13. — Teetll at five years past, showing wetir and dark marks. 



Figure 14. — Teeth at ten years old, showing permanent spaces betwc-cu tlicio , .-ils.j shape 

 from natural wear by use. 



