Matthew Boulton, an English mechanician, born in Birmingham, Sept. 3, 1728, died near there, Aug. 17, 1809. He joined his father in the manufacture of hardware, and one of his first inventions was a new mode of inlaying steel. The death of his father gave him ample means to extend his business, and in 1762 he established the Soho manufactory near Birmingham, for which he in 1767 constructed a steam engine, on the original plan of Savery. In 1769 he entered into partnership with James Watt, .and the Soho steam engine, gradually improved and simplified, became known all over Europe. It was first applied to coinage in 1783, from 30,000 to 40,000 milled coins being struck off in an hour. Boulton and Watt sent two complete mints to St. Petersburg, and for many years executed the entire copper coinage of England. Mr. Boulton expended £47,000 on the steam engine before Watt had so completely constructed it that its operation yielded profit. He also patented a method of raising water and other fluids by impulse.