LXVIII. Quadrature of the circle; and proportion of the diameter to the circumference; containing some observations on its perimeter and area, tending to demonstrate the utter impossibility of ever obtaining a perfect solution of these delusive problems: together with the true and only cause of the constant failure of all attempts to effect it. To which is added, a simple and easy Process of estimating the most useful properties of the sphere &c. in mensuration To the editors of the Philosophical Magazine and Journal
