The Bearer of this Dr. Nicholas Falck, is an Inhabitant of this City, and is a Person of a general fair Character:—It is said, he having made some remarkable Discoveries in the Mathematicks and other Sciences, goes to London in order to communicate them to Advantage, and being some Acquaintance of mine, I have presumed to recommend him thus to your Notice: The Nature or Use of his Acquisitions he must inform you of himself, being persuaded that you will be a better Judge, whether they be of Utility or not, than I could pretend to: As I write per Packet I have no more to add now, than that I am with all Respects Your most obliged Servant