District of Pennsylvania, to wit: BE IT REMEMBERED, that on the eighteenth day of May, in the thirty-third year of the Independence of the United States of America, A. D. 1809, Kimber & Conrad, of the said District, have deposited in this office, the title of a book, the right whereof they claim as proprietots, in the words following, to wit: "Elements of the Conic Sections. By the late Dr. Robert "Simson, Professor of Mathematics in the University of "Glasgow. Translated from the Latin Original. Care "fully revised, corrected and enlarged." In conformity to the act of the Congress of the United States, entitled, “An act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during the times therein mentioned." And also to the act, entitled "an act supplementary to an act, entitled," an act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during the time therein mentioned," and extending the benefits thereof to the arts of designing, engraving, and etching historical and other prints." D. CALDWELL, Clerk of the District of Pennsylvania. 10-21-38 HOM. "THE first three books of Dr. Simson's Treatise of the CONIC SECTIONS are translated into English, with a view to facilitate the study of the higher geometry. These books contain as much of the doctrine as usually enters into an academical education." This edition has received a careful revision: some omissions have been supplied, several errors corrected, and a few propositions, which frequently apply to physical inquiries, introduced. And to exhibit the work nearly as left by its author, the added propositions are distinguished by letters of the alphabet. New-Garden Boarding School, E. L. |