Dr David Roberts practical home Dr. David Roberts practical home veterinarian .. drdavidrobertspr00robe Year: 1911 10 If 12 Figure 1.—Teeth of calf at birth, showing the first two Incisors, milk teeth. Firgue 2.—Teeth at two weeks old, showing four tem- porary incisors. Figure 3.—Teeth at three weeks old, showing six In- cisors. Figure 4.—Teeth at one month old, showing eight in- cisors, or full set. Figure 5.—Teeth at six or eight months old, showing wear on first two, or central teeth. Figure 6.—Teeth at ten months old, showing absorption in first two pair of teeth, and wear of two outs
Dr David Roberts practical home Dr. David Roberts practical home veterinarian .. drdavidrobertspr00robe Year: 1911 10 If 12 Figure 1.—Teeth of calf at birth, showing the first two Incisors, milk teeth. Firgue 2.—Teeth at two weeks old, showing four tem- porary incisors. Figure 3.—Teeth at three weeks old, showing six In- cisors. Figure 4.—Teeth at one month old, showing eight in- cisors, or full set. Figure 5.—Teeth at six or eight months old, showing wear on first two, or central teeth. Figure 6.—Teeth at ten months old, showing absorption in first two pair of teeth, and wear of two outside pairs. Figure 7.—Teeth at twelve months old, showing absorption in all the nippers, except out- side pair, and wear in these. Fiirnrp 8.—Teeth at fifteen months old, showing absorption and wear in all the tem- porary nippers. Fijrurp 0.—Teeth at eighteen months old, showing two first permanent incisors (1-1) and next two pairs (2-2) and (3-3), 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. Figure 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.—Teeth at five years past, showing wear and dark marks. Figure 14.—Teeth at ten years old, showing permanent spaces between them; also shape from natural wear by use.
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