Note 294 — Chapter XVIII · Friends of Boulton and Watt—The Lunar Society.

In a letter from Priestley to Boulton, dated London, 6th November, 1775, he wrote,—“I shall not quarrel with you on account of our different sentiments in politics. When I tell you what is fact, that the Americans have constructed a cannon on a new principle, by which they can hit a mark at a distance of a mile, you will say their ingenuity has come in aid of their cowardice! I would tell you the principle of it, but that I am afraid it would set your superior ingenuity to improve upon it for the use of their enemies.” From Boulton’s memoranda-books we find that the subject of improved artillery had occupied his attention some ten years before.