Doctor Maskelyne having fully verified the complete practicability of this method, procured through the Board of Longitude the publication of Mayer’s tables, accompanied
by a reward or premium, under an Act of Parliament, to his widow, of three thousand pounds; and soon afterwards the same eminent and patriotic astronomer devised and executed a work absolutely necessary for enabling ordinary persons to avail themselves of this important discovery, namely the Nautical Almanac, in which the sun’s place is accurately given for the noon of each day, the place of the moon for noon and midnight of each day, and the true angular distance of the moon from the sun, and from certain stars for every third hour of the day and of the night throughout the year, together with the equation of time, the places of the planets, &c.: thus saving to observers perhaps ninety-nine parts out of a hundred of the calculations that were previously indispensible.
The labour of such a work must obviously require many hands, especially as without great care in constructing the original calculation, and in correcting the press, it would prove worse than useless. To ensure this accuracy, the most important parts were performed in duplicate by different persons, and the whole carefully collated and verified by the superior officer, called the Comparer, under the ultimate superintendence of the Astronomer Royal himself.
In constructing the first Nautical Almanac that appeared, for 1767, Mr. Hitchins performed the office of a computer; but for all the others, up to the period of his decease in 1809, he most advantageously, not only for this country but for the whole world, executed the office of comparer.
The Lunar tables are now carried to a degree of perfection far exceeding those of Mayer, and the Nautical Almanac has been enlarged and improved; but the glory of devising the work remains with Doctor Maskelyne, and perhaps scarcely a less degree of glory with Mr. Hitchins, for having conducted it with unrivalled accuracy for a period extending through so great a number of years.
During his residence at Greenwich Mr. Hitchins had received holy orders; and, as the office of comparer did
not confine him to any particular place, he removed to Exeter, and soon obtained the vicarage of Hennock, to hold for a minor. He did not fail however of attracting attention from the clergy of the Cathedral, and about the year 1774 Bishop Keppell collated him to St. Hilary, which had lapsed in consequence of a dispute between two of the numerous patrons claiming unsettled turns to the presentation. Here Mr. Hitchins resided respected and admired till the close of his life, on the 28th of March 1809; having been distinguished by the succeeding Bishop of Exeter, Dr. John Ross, who conferred on him the adjoining vicarage of Gwinear.
Mr. Hitchins had four sons and one daughter.
The eldest, Richard, was a Fellow of Exeter College, and died unmarried on a college living.
The second, Thomas, also a clergyman, married Miss Emma Grenfell, of Marazion; he served for many years a church near Plymouth, and has left several children.