QA 451 .A43

District of Maryland to wit

BE IT REMEMBERED, That on this Sixth day of May, in the Forty-sixth year of the Independence of the United States of America, Joseph Cushing and Joseph Jewett of the said District have deposited in this Office the title of a Book, the right whereof they claim as Proprietors, in the words following; to wit:

SEAL.

"Euclid's Elements of Geometry, the six first Books. To which are added, EleIments of Plain and Spherical Trigonometry, a System of Conick Sections, Elements "of Natural Philosophy, as far as it relates to Astronomy, according to the Newto"nian System, and Elements of Astronomy with Notes. By the Rev. JOHN ALLEN, "A. M. Professor of Mathematicks in the University of Maryland.

"The works of the Lord are great, sought out of all those who have pleasure therein.".... Psl. cx1."

In Conformity to the act of 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 times therein mentioned," and extending the benefits thereof to the arts of designing, engraving, and etching historical and other prints."

PHILIP MOORE, Clerk of the district of Maryland.