. Elements of histology. Histology. B Fig. 103.—Enamel Prisma. A, In longitudinal view ; b, in cross section. (Kolliker.) light and dark stripes in the enamel is thus produced. Besides this there are seen in the enamel dark hori- zontal curved lines, the brown parallel stripes of Retzius, probably due to inequalities in the density of the enamel prisms produced by the successive forma- tion of layers of the enamel. The enamel consists chiefly of lime-salts : phosphate, carbonate, and fluorate of calcium. In young teeth the free surface of the enamel is covered with a delicate cuticle (the cuti
. Elements of histology. Histology. B Fig. 103.—Enamel Prisma. A, In longitudinal view ; b, in cross section. (Kolliker.) light and dark stripes in the enamel is thus produced. Besides this there are seen in the enamel dark hori- zontal curved lines, the brown parallel stripes of Retzius, probably due to inequalities in the density of the enamel prisms produced by the successive forma- tion of layers of the enamel. The enamel consists chiefly of lime-salts : phosphate, carbonate, and fluorate of calcium. In young teeth the free surface of the enamel is covered with a delicate cuticle (the cuticle of Nasmyth), being a single layer of non-nucleated scales. In adult teeth this cuticle is wanting, hav- ing been rubbed off. 229. The dentine is the essential part of the hard. 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 Klein, E. (Edward), 1844-1925. Philadelphia : H. C. Lea's Son
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