Select exercises for young proficients in the mathematicks : Containing, I. A large variety of algebraical problems with their solutions. II. A choice number of geometrical problems with their solutions both algebraical and geometrical. III. The theory of gunnery, independent of the conic sections. IV. A new and very comprehensive method for finding the roots of equations in numbers. V. A short account of the nature and first principles of fluxions. VI. The valuation of annuities for single and joint lives, with a set of new tables, far more extensive than any extant. By Thomas Simpson, F.R.S.