HART, Joel T., sculptor, born in Clark county, Kentucky, in 1810; died in Florence, Italy, 1 March, 1877. He received a common school education, and was apprenticed to a stone cutter in Lexington, Kentucky, where he began to model busts in clay. In 1849 he went to Italy for study, and there, under the patronage of the Ladies' Clay association, modelled a statue of Henry Clay, which is now in Richmond, Virginia His next work was a colossal bronze statue of Mr. Clay, which is now in New Orleans, and the marble statue of that statesman in the Louisville court house. Thirty years of his life wore spent in Florence, during which time he finished busts and statues of many distinguished men. His best compositions are "Charity," "Woman Triumphant," and "Penserosa." He invented an apparatus for obtaining mechanically the outline of a head from life. It consisted of a metallic shell, which surrounded the head, with a space between, perforated for a large number of pins. Each pin was pushed inward till it touched the head, and there fastened. The shell was then filled with plaster, which was cut away till the points of the pins were reached, thus forming a rough mould.