Examples of Notched Bills

The notches or serratures are evi. dently adapted to the better securing of the prey; and this conformation appears not only in the Den tiros tres, but in birds of other toothed Falcons, as in the genus shaped beak with a notch in the upper mandible near the point. There are ten primary remiges, of which the first may be rudimentary. Most are Oscines. Exam ples are: Corvidæ (Crows, Daws, and Magpies), also Birds of Paradise; in these the two middle rectrices are long, filiform, with a small vane at the end, and the male has also tufts of lax feathers on neck, breast and sides. Here also belong the Starlings, Shrikes, Fly-catchers, Titmice, Wagtails ( Motacilida ), Sylviide (Warblers, Wrens), and Thrushes ( Turdida ) , to which family belong also the Nightingale, European Blackbird, and American Robin. Of the Starling family ( Sturnide ) are the Bower-birds of Australia. Dentistry. Everything which groups and orders. Examples relates to care, preservation, etc., may be seen in the double of teeth. Dentists are mentioned Harpagus, a ; in the Nogons, b; in by Galen, Hippo crates, and sevthe sub-genus Andro pad us, c; In the chizeris Variegstad, eral writers before the Christian where the teeth are small, sharp. era, and they are believed to have regular, and it equal size en the existed in prehistoric times in of Vieillot, e, has a centra i or raptorial tooth to its bill. Egypt. Until first years of nine teenth century, teeth were attended to by medical men, who paid little attention to preservative methods. Until within comparatively recent times the vast majority of dentists were poorly educated, but now they compare favorably with medical men of equal opportunities, and to them are often committed the treatment of fractures and many diseases of the jaws. False teeth are prehistoric and were formerly made of bone or ivory and held in place by wires or cords. Later human teeth were employed, but abandoned in favor of those made of refractory porcelain. Gold, silver, and platinum are sometimes used for plates into which teeth are set, but vulcanized rubber is employed more generally, being lighter and cheaper. Gold, amalgam of tin and silver, tin, silver, oxy chloride and phosphate of zinc and gutta perch a are the agents used for filling or plugging teeth. Choice of one to be employed depends upon condition of tooth, but gold is the most generally useful. Teeth of valuable horses and cows are often filled, with good results. See CORNETO.