. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. Ch. X.] TEETH OF EXTIXCT MAMMALIA. 135 of the three species of elephants, figs. 112 a, 113, 114, it will be seen that the folds of enamel are most numerous in the mammoth, fewer and wider, or more open, in E. antiquus, and most open and fewest in E. meridimalis. It will be also seen that the enamel in the molar of the rhinoceros tichorhinus (fig. 116) is mnch thicker than in that of the rhinoceros leptorhinus (fig. 115). Fis. 120. Fig. Deer. Elk {Oermts aloes,
. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. Ch. X.] TEETH OF EXTIXCT MAMMALIA. 135 of the three species of elephants, figs. 112 a, 113, 114, it will be seen that the folds of enamel are most numerous in the mammoth, fewer and wider, or more open, in E. antiquus, and most open and fewest in E. meridimalis. It will be also seen that the enamel in the molar of the rhinoceros tichorhinus (fig. 116) is mnch thicker than in that of the rhinoceros leptorhinus (fig. 115). Fis. 120. Fig. Deer. Elk {Oermts aloes, L.); re- cent; molar of upper jaw. a. Grinding surface. &. Side view; two-thirds of nat. 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 Lyell, Charles, Sir, 1797-1875. New York, D. Appleton and co.
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectgeology, bookyear1868
