. Cattle. Cattle; Cattle. THE TEETH. 193 all the incisors fully up, until it is five years old. It will be seen, however, in this mouth of four years, that the two central pairs are beginning to be worn down at the edges, and that in a flat direction, or somewhat inclinino- towards the THREE YEARS. PAST. FOUR YEARS. PAST. At five years old, the teeth are all fully grown, but this mark has extended over the whole set, and all the teeth are a little flattened at the top ; while on the two centre ones there begins to be a dis- tinct darker line in the middle, bounded by a line of harder


. Cattle. Cattle; Cattle. THE TEETH. 193 all the incisors fully up, until it is five years old. It will be seen, however, in this mouth of four years, that the two central pairs are beginning to be worn down at the edges, and that in a flat direction, or somewhat inclinino- towards the THREE YEARS. PAST. FOUR YEARS. PAST. At five years old, the teeth are all fully grown, but this mark has extended over the whole set, and all the teeth are a little flattened at the top ; while on the two centre ones there begins to be a dis- tinct darker line in the middle, bounded by a line of harder bone. From this time the age for a year or two can only be guessed at, and a great deal will depend up- on the manner in which the ani- mal is fed. The beast most out, and compelled most to use his incisor teeth, will have them •worn farthest down. As a general rule, but admitting of many exceptions, at seven years old, this hne is becoming broad- est and more irregular in all of the teeth; and a second and broader, and more circular mark appears within the centre of the former one, the most distinct in the central, or two central pairs —and which at eight years has spread over the six central inci- sors. 9. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Youatt, William, 1776-1847; Martin, William Charles Linnæus, 1798-1864; Stevens, A. New-York, C. M. Saxton


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