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THIERS 354 THIBLAGE self in favor of the republic as a definitive form of government for France, and thus to some extent brought about the crisis which resulted in his being deprived of the presidency. He accepted his depo- sition with dignity, and went quietly into retirement. M. Thiers' chief works are: "History of the French Revolution" (6 vols. 1823-1827), and "History of the Consulate and the Empire" (20 vols. 1845-1862). The latter obtained for him the academic prize of $4,000. He died near Paris, Sept. 3, 1877. THIERSCH, FRIEDRICH WIL- HELM, a German classical scholar; born in Kirchscheidungen, Prussian Sax- ony, June 17, 1784, studied theology and philology at Leipsic and Gottingen, and in 1809, following a call to the newly- founded Munich Lyceum, there founded a Philological Institute. The enthusiasm he had shown in the German War of Libera- tion he presently directed to Hellenic re- generation, and in 1831 visited Greece, where on the murder of Capo d'Istria he cooperated toward the election of Otto of Bavaria to the throne. Returning to Munich, he was elected president of the Academy in 1848. His most important work was his "Greek Grammar." He died in Munich Feb. 25, 1860. THIERSCHITE (after F. von Thiersch, the discoverer), a mineral sub- stance occurring as an incrustation on the marbles of Parthenon, Athens. Stat- ed to be an oxalate of lime originating from the action of vegetation on the mar- ble. THIETHALDINE, C6Hi=(C2H,)NS,; prepared from ethylamine in the same way as thiamethaldine. Has not been ob- tained pure. THIETSIE, a resinous substance used as a varnish by the Burmese. It exudes from Melanorrhoea usitatissima in the form of a very viscid, light-brown liquid. The main portion is soluble in alcohol, and is very tenacious. The remaining portion is insoluble in ether, and changes, on exposure to the air, to a deep black and nearly solid substance. THIGH BONE, the femur, the largest bone in the skeleton, situated between the OS innominatum and the tibia. In the erect position of the body it inclines inward, and slightly backward as it de- scends. At its superior extremity is its neck; its shaft terminates beneath in two condyles, united anteriorly, but separated posteriorly by a deep intercondylar fossa or notch. THILLY, FRANK, an American edu- cator; born in Cincinnati, 0., Aug. 18, 1865; was graduated at the University of Cincinnati in 1887, and studied at the Universities of Berlin and Heidelberg In 1887-1891; was instructor in logic and history of philosophy at the Sage School of Philosophy, Cornell University, in 1892-1893, Professor of Philosophy at the University of Missouri (1893-1904), of Psychology (1904-1906), Professor of Philosophy, Cornell, from 1906 on. Dean of the College of Arts, Editor Interna- tional Journal of Ethics, President American Philosophical Society (1912). Author "A History of Philosophy" (1914). Translation of Weber's "History of Philosophy" (1896), etc. THIMBLE, a metallic cap or sheath used to protect the end of the finger in sewing. Seamstresses use a thimble having a rounded end with numerous small pits or indentations. Those used by tailors are open at the end. The manufacture of thimbles is very simple. Coin silver is mostly used, generally sil- ver dollars, which are melted, and cast into solid ingots. These are rolled into the required thickness, and cut by a stamp into disks of any required size. A solid metal bar the size of the inside of the intended thimble, moved by pow- erful machinery up and down in a bot- tomless mold of the size of the outside of the thimble, bends the circular disks into the thimble shape as fast as they can be placed under the descending bar. The work of brightening, polishing, and deco- rating is done on a lathe. First the blank form is fitted with a rapidly revolving rod. A slight touch of a sharp chisel takes thin shavings from the end, another does the same on the side, and the third rounds off the rim. A round steel rod, dipped in oil and pressed on the surface, gives it a lustrous polish. Then a small revolving steel wheel, whose edge is a raised ornamental design held against the revolving blank, prints that design just outside the rim. A second wheel prints a different design around the center, while a third wheel, with sharp points, maks indentations on the lower half and end of the thimble. The inside is bright- ened and polished in a similar way, the thimble being held in a revolving mold. The completed thimbles are boiled in soapsuds to remove the oil, brushed up, and packed for the trade. Thimbles are said to have been found at Herculaneum, and long ago used by the Chinese. THIRLAGE, an old servitude, or rather service, enjoyed by the proprietor of a mill over the neighboring lands "thirled" to it, whereby the possessors (and tenants) of the lands were bound to have their grain ground at that mill,