Mr. Barton was a native of Ireland, descended from an English family; of which, either two or three brothers settled in that kingdom, during the disastrous times in the interregnum of Charles I. Having obtained very considerable grants of land in Ireland, this family possessed ample estates in their then adopted country. Hence, flattering prospects of an establishment there, in respect to fortune, were held out to their descendants. Through one of those untoward circumstances, however, by means of which the most unexpected revolutions in the affairs of families and individuals have been sometimes produced, the expectations of an independent patrimony which our Mr. Barton’s father had entertained, were speedily dissipated. Nevertheless, this gentleman, who was the eldest son of his family, was instructed in the rudiments of a classical education in the vicinity of his family residence in the county of Monaghan, under the direction of the Rev. Mr. Folds, a respectable English clergyman; and at a suitable age, he was sent to the university of Dublin, where he finished his academical education. Entirely destitute of fortune, but possessing a strong intellect, stored with useful and ornamental learning as well as an ardent and enterprizing spirit, this young adventurer arrived in Philadelphia soon after he had completed his scholastic studies. The writer’s principal design, in presenting to the public view these slight sketches of the early history of the late Rev. Mr. Barton, shall be now explained. When Mr. Rittenhouse’s father established his residence at Norriton, and during the minority of the son, there were no schools in the vicinity at which any thing more was taught, than reading and writing in the English language and the simplest rules of arithmetic. Young Mr. Rittenhouse’s school-education, in his early youth, was therefore necessarily bounded by these scanty limits of accessible instruction: He was, in truth, _taught_ nothing beyond these very circumscribed bounds of literary knowledge, prior to the nineteenth year of his age; though it is certain, that some years before that period of his life, he began to be known—at least in his own neighbourhood—as a mathematician and astronomer, in consequence of his cultivation of the transcendent genius with which heaven had endued him.