That precious stones should be used to decorate the teeth seems a rather queer development of art, although the practice is not altogether unknown at the present day, when we hear now and again of diamonds being set in teeth to satisfy the vanity of some eccentric individual. In pre-Colombian times, however, there is abundant evidence that this strange form of personal adornment was by no means rare, several examples having been unearthed from burials in Ecuador, and evidence of the usage being offered by remains from Mexico and also from Central America. Among the Mayans here jadeite seems to have been the stone principally favored for this purpose, while in Mexico hematite has been met with in Oaxaca, turquoise in Vera Cruz, and at other places in the land, rock-crystal and obsidian.[716] For the insertion of the stones, the primitive dental artists carefully and skilfully cut or rubbed away the enamel from a section of the front part of the tooth to be decorated, and then applied the precious stone, cut to the required shape, as an inlay. The way in which this was done gives evidence of a remarkably high degree of skill in this line of work; in many cases an inlay of gold was used, instead of a precious stone, and it has even been conjectured that some of these gold inlays represent a kind of gold filling for the protection of the tooth. While this is open to question, the undoubted fact that new teeth were occasionally inserted to take the place of those which had fallen out or decayed, as shown in several specimens, might be regarded as corroborative of the broader assumption. The expert workmanship of these pre-Colombian “dental surgeons” is clearly manifested in the good condition of the teeth whence so much of the enamel had been removed, showing that the inlays must have been so closely adjusted that the tooth was effectively protected from the introduction of moisture. One of the latest fashionable fads, suggested by the great variety of bright-colored costumes worn by the _mondaines_ (and others) at the present day, is the selection and wear of jewelry set with stones of the same color as the striking gown. Thus with a costume of glowing red, the ruddy ruby would be chosen, a sky-blue costume would insure the wearing of the justly popular sapphire, dress of a golden-yellow hue would call for one of the shades of topazes, while the “new brown,” now so much in vogue, finds its complementary stone in topaz of a slightly darker shade. The grass-green costume would suggest one of the many beautiful shades of the tourmaline, and jewelry of the pink tourmaline would be appropriate to garments of this color. With their wonderful play of color, opals would accord with all varieties of hue in costume and might thus be worn with either of the other more especially matched stones.