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April 28, 38 KD 30985

Mich

AN

ELEMENTARY TREATISE

AUTHOR OF

ON

ALGEBRA,

THEORETICAL AND PRACTICAL,

ADAPTED TO THE INSTRUCTION OF YOUTH IN
SCHOOLS AND COLLEGES.

BY JAMES RYAN,

63

A KEY TO BONNYCASTLE'S ALGEBRA."

TO WHICH IS ADDED,

AN APPENDIX,

CONTAINING AN ALGEBRAIC METHOD OF DEMONSTRATING THE
PROPOSITIONS IN THE FIFTH BOOK OF EUCLID'S ELE-

MENTS, ACCORDING TO THE TEXT AND AR-
RANGEMENT IN SIMSON'S EDITION,

BY ROBERT ADRAIN, LL.D. F.A.P.S. F.A.A.S., &c.

And Professor of Mathematics and Natural Philosophy, in Columbia
College, New-York.

New-York:

PUBLISHED BY COLLINS AND HANNAY,
NO. 230 PEARL-STREET.

HARVARD
UNIVERSITY
LIBRARY
047*172

Southern District of New-York, ss.

BE IT REMEMBERED, That on the first day of July in the fortyeighth year of the Independence of the United States of America, JAMES RYAN, of the said District, has deposited in this office the title of a Book, the right where of he claims as Author, in the words following, to wit:

"An Elementary Treatise on Algebra, theoretical and practical, adapted to the Instruction of Youth in Schools and Colleges. By James Ryan, Author of a Key to Bonnycastle's Algebra. To which is added, an Appendix, containing an Algebraic Method of demonstrating the Propositions in the fifth book of Euclid's Elements, according to the text and arrangement in Simson's edition, by Robert Adrain, LL.D. F.A.P.S. F.A.A.S., &c, and Professor of Mathematics and Natural Philosophy, in Columbia College, New-York."

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 time therein mentioned;" and also to an 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."

JAMES DILL,

Clerk of the Southern District of New-York.

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