Six discourses, delivered by Sir John Pringle ... when President of the Royal Society; on occasion of six annual assignments of Sir Godfrey Copley's Medal. To which is prefixed the life of the author / By Andrew Kippis [the editor].
- John Pringle
- Date:
- 1783
Licence: Public Domain Mark
Credit: Six discourses, delivered by Sir John Pringle ... when President of the Royal Society; on occasion of six annual assignments of Sir Godfrey Copley's Medal. To which is prefixed the life of the author / By Andrew Kippis [the editor]. Source: Wellcome Collection.
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![t *75 ] Much therefore are we indebted to Mr. Hutton, who, treading in the footfteps of the deceafed, hath refumed and profe- cuted this laft defideratum, and hath {hewn himfelf not unequal to fo difficult an enter- prize, Mr. Robins, for determining the ini* tial 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 em- ployed thofe of different weights, from one pound to nearly three ; or, in other words, Mr. Robins made trial with muf- ket fhot only, Mr. Hutton with cannon- balls from 20 to about 50 times heavier. This was a confiderable flep gained in a difquifition on that part of the fcience, in which the refiftance of the air, and other circumftances, were not concerned; and where neither analogy alone, nor xnathe-](https://iiif.wellcomecollection.org/image/b28758018_0389.jp2/full/800%2C/0/default.jpg)
