THE HISTORY OF THE WORKS of the LEARNED, FOR THE Year One Thoufand Seven Hundred CONTAINING IMPARTIAL ACCOUNTS and ACCURATE INTERSPERS'D WITH DISSERTATIONS on feveral curious and enter- VOL. II. LONDON: Printed for JACOB ROBINSON, at the Golden- THE HISTORY OF THE WORKS of the LEARNED. For JULY, 1742. ARTICLE I New Principles of GUNNERY: Containing the Determination of the Force of Gunpowder, and an Investigation of the Difference of the refifting Power of the Air to fwift and flow Motions. By Benjamin Robins, F. Ř. S, London: Printed for J. Nourfe, without Temple-Bar. 1742. Octavo. Pages 95, befides a Preface of 57, &c. T is of little Importance to our Readers to know the Occafion of this Treatife: We need only inform them, that therein the Force and varied Action of "Powder is fo far determined, that the "Velocities of all kinds of Bullets impelled by its "Explosion, may be thence computed, and the " enormous Refiftance of the Air to fwift Motions "(much B |