The Virginia Gazette

Sept. 14. The Abbe Rochon, who sailed from the road of Brest on the 7th of April, on board the Union; commanded by Count Breughon, who went to Morocco, is returned from his voyage, having made his intended observations. He has viewed several eclipses of Jupiter's satellites with an instrument of his own invention, which obviates a difficulty with which these observations have been hitherto attended: The difficulty consisted in keeping the star in view during the agitation of the ship, by a telescope not magnifying less than sixty times; but with the Abbe's instrument, whatever be the motion of the ship, the star can never be lost above four seconds of time. It has been approved by a committee of the Academy of Sciences, to whom a memoir has been sent for examination, containing an account of the observations made with it.