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Show Maya Indians Advanced in Practical Dentistry Mayan Indians who lived !n Central Cen-tral America more than 1,000 years ago practiced dentistry and knew something about the technique of drilling boles In teeth and filling up the cavity with metal. Two teeth containing con-taining circular holes filled with iron pyrites were among tbe significant discoveries dis-coveries reported by J. Eric Thompson, Thomp-son, leader of the Capt Marshall Field arcbeological expedition to British Honduras. The teeth were found In a vaulted burial chamber In tbe ruins of tbe Mayan city of Tsimln Cax, which means "Mountain Cow." A good collection col-lection of Mayan painted pottery was found in the chamber. Other burial chambers yielded skeletons and pottery pot-tery types hitherto unknown In the Mayan art, also Jade ear-plugs and apple-green Jade beads. While digging In a large mound in the ruins of the city, the expedition made the first authenticated find of a mirror from a site of the old Empire Em-pire of the Mayan tribes, that Is, from the period between 400 and 800 A. D, Mr. Thompson stated. The object ob-ject consisted of a number of small squares of iron pyrites, which apparently appar-ently bad made a shiny metal looking glass with a pottery back. Heretofore Hereto-fore It has been generally supposed . that the Inhabitants of tbe early Mayan cities were unacquainted with the use of mirrors. Kansas City Star's Science Service. |