were all written by the late Mr. THOMAS SIMPSON, F. R. S. and printed for J. NOURSE.

I. SSAYS ON SEVERAL CURIOUS AND USEFUL

Es

E SUBJECTS, IN SPECULATIVE AND

AND MIXED

MATHEMATICKS; in which the moft difficult Problems of the firft and fecond Books of Newton's Principa are explained; in 4to.

II. MATHEMATICAL DISSERTATIONS on a variety of Phyfical and Analytical Subjects, in 4to.

III. MISCELLANEOUS TRACTS on fome curious and very interefting Subjects in Mechanicks, Physical-Aftronomy, and Speculative Mathematicks, in 4to, 1757.

IV. THE DOCTRINE OF ANNUITIES AND REVERSIONS, deduced from general and evident Principles; with useful Tables, fhewing the Values of fingle and joint Lives, &c. in 8vo.

V. Ditto Appendix.

VI. A TREATISE OF ALGEBRA; wherein the fundamental Principles are fully and clearly demonftrated, and applied to the Solution of a great Variety of Problems, and to a Number of other useful Enquiries. 2d Edition, in 8vo.

VII. THE DOCTRINE AND APPLICATION OF FLUXIONS; containing (befides what is common on the Subject) a Number of new Improvements in the Theory, and the Solution of a Variety of new and very interefting Problems in different Branches of the Mathematicks. 2 Vols. 8vo. fecond Edition.

VIII. SELECT EXERCISES for Young Proficients in the Mathematicks; containing, befides a choice Collection of Problems, both algebraical and geometrical, the whole Theory of Gunnery; a very accurate and fuccinct Demonftration of the first Principles of Fluxions; and a Set of Tables for the Valuation of Annuities and Reverfions, more comprehenfive than any extant. 8vo. 津

IX. THE ELEMENTS OF GEOMETRY, with their Application to the Menfuration of Superficies and Solids, &c. Second Edition, with large Alterations and Additions. 8vo.