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MATHEMATICS AND PHYSICS.

5

THORNTON: Works by J. Thornton.

First Lessons in Book-keeping. 8vo. 70 cents.

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GEOMETRY.

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BESANT (Dr. W. H.): Conic Sections treated Geometrically. 16mo. $1.10.

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CONSTABLE: Geometrical Exercises for Beginners. By Samuel Constable. 12mo. 90 cents.

CUTHBERTSON: Euclidian Geometry. By Francis Cuthbertson, M.A. 16mo. $1.10.

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