A discourse on the theory of gunnery. : Delivered at the anniversary meeting of the Royal society, November 30, 1778. / By Sir John Pringle, baronet. Published by their order.

  • John Pringle
Date:
1778
Catalogue details

Licence: Public Domain Mark

Credit: A discourse on the theory of gunnery. : Delivered at the anniversary meeting of the Royal society, November 30, 1778. / By Sir John Pringle, baronet. Published by their order. Source: Wellcome Collection.

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    C >8 ] Much therefore are we indebted to Mr. Hutton, who, treading in the footfteps of the deceafed, hath re- f fumed and profecuted this laft defideratum, and hath ffiewn himfelf not unequal to fo difficult an enterprize. Mr. Robins, for determining the initial velocity of fhot, arifing from different quantities of powder, made ufe of balls of about an ounce weight; whereas Mr. Hutton., for the fame purpofe, hath employed thofe of different weights, from one pound to nearly three; or, in other words, Mr. Robins made trial with mulket-ffiot only, Mr. Hutton with cannon-balls from 2Q to about 50 times heavier. This was a confiderable ftep gained in &1 '//■ ' . . '■' Jp a difquilition on that, part of the fcience, in which the refiftance of the air and other circumftances were not concernedand where neither analogy alone, nor ma¬ thematical deductions alone, nor the two combined, were fufficient for eftabliffiing principles applicable to the motion of cannon-balls, without making a new feries of experimentsand with what labour and judgment thefe have been performed, you underftood by the ac¬ count which Mr. Hutton gave of them in his Paper.