Note 89 — Chapter VIII · Watt’s Connexion with Dr. Roebuck—Watt acts as Surveyor and Engineer.
Reading edition
Letter to Small, 24th Nov. 1772. Watt, however, took no steps to bring this invention before the public, and in 1777, a similar instrument having been invented by Dr. Maskelyne, was presented by him to the Royal Society. Thus Watt also lost the credit of this invention.