Page:Philosophical Transactions - Volume 002.djvu/74

 Numb. 23.(473)

Munday, June 3. 1667.

The Contents.

The better to determine the three Grand Desiderata, in the Art of Gunnery viz. 1. The Point-blank distance. 2. The Quantity of Powder for the just Charge of any Peece. 3. What Gun (for Size, Bore, Weight, Metal, &c.) Shoots Farthest: The following Experiments are proposed and directed, by Sr. Robert Moray; to give occasion to such as are Curious in this Art, to improve the same, as they shall have opportunity. Who we cannot but suppose will be so generous, as to impart the Successes and the Events of their Tryals of this kind to the Pubisher of these Transactions; for further Improvement and Use.

O Know, how Far a Gun Shoots Point-blank (as they call it) that is, so near the Level of the Cylinder of the Peece, that the difference is either not discernable, or not considerable: On a fit plat-form, place and point the Gun at a Mark, as large as the Bullet, some 50. 60. or more Yards distant, so as the under-side of the Mark may be in the same Level or Rh