. Dentition as indicative of the age of the animals of the farm. Domestic animals -- Age; Teeth. q/ the Animals of the Farm. 7 Attention is, in the first place, directed to the upper surface of the crown of the incisor, which is described as the table of the tooth. In the centre of the table is a cavity (a) familiarly known as the " mark," on account of the dark colour of its interior. In form, the table of the incisor tooth may be described as an elliptical figure, with its long axis running transversely. At the end of the fang the figure is also elliptical, but the long axis is exa
. Dentition as indicative of the age of the animals of the farm. Domestic animals -- Age; Teeth. q/ the Animals of the Farm. 7 Attention is, in the first place, directed to the upper surface of the crown of the incisor, which is described as the table of the tooth. In the centre of the table is a cavity (a) familiarly known as the " mark," on account of the dark colour of its interior. In form, the table of the incisor tooth may be described as an elliptical figure, with its long axis running transversely. At the end of the fang the figure is also elliptical, but the long axis is exactly at right angles to that of the table; and by Fig. 2.—Permanent Incisor (Horse).. grinding, or by the slower process of wearing an incisor tooth from the upper surface towards the fang, a series of figures will be formed, passing from the elliptical to the oval, the square, and the triangle, first with equal sides, and then with two sides longer than the base. For the purpose of making the nature of these changes evi- dent, the outlines of the figures, which result from the wear of tooth structures, are placed on the right of the tooth (Fig. 2). There are, however, other points which require to be noticed. The cavity in the centre of the table is formed by an inflexion. 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 Brown, George Thomas, Sir, 1827-. London, J. Murray
Size: 1363px × 1834px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherlondo, bookyear1895
