that State, and was honourably receiued by her Majesty, he brought me a lattin letter from a Gentleman of Venice that is very well learned, whose name is Iohannes Franciscus Sagredus, he is a great Magneticall man and writeth that hee hath conferred with diuers learned men of Venice, and with the Readers of Padua, and reporteth wonderfull liking of my booke, you shall haue a coppy of the latter: Sir, I purpose to adioyne an appendix of six or eight sheets of paper to my booke after a while, I am in hand with it of some new inuentions, and I would haue some of your experiments, in your name and inuention put into it, if you please, that you may be knowen for an augmenter of the art. So far this time in haste I take my leaue the XIII of February. Your very louing friend, W. GILBERT.” Speaking of William Barlowe, Anthony à Wood says: “This was the person who had knowledge of the magnet twenty years before Dr. Will. Gilbert published his book of that subject, and therefore by those that knew him he was accounted superior, or at least equal, to that doctor for an industrious and happy searcher and finder out of many rare and magnetical secrets” (“Athenæ Oxonienses,” London, 1813, Vol. II. p. 375). Under heading of Gilbert, the “British Museum Catalogue of Printed Books,” 1888, has it that “Mag. Adv.” was compiled partly from “De Magnete.” REFERENCES.--Mark Ridley, “Magn. Animad.,” 1617, p. xi; Cavallo, “Magnetism,” 1787, p. 46; A.D. 1302; Sidney Lee, “Dict. of Nat. Biogr.,” Vol. III. pp. 233–234; “La Grande Encycl.” (H. Lamisault), Vol. V. p. 430; Pierre Larousse, “Grand Dict. Univ. du xix^e siècle,” Paris, 1867, Vol. II. p. 239; Claude Augé, “Le Nouveau Larousse,” Vol. I. p. 738; “Wood’s Ath. Ox.” (Bliss), Vol. II. p. 375; Hœfer, “Nouv. Biogr. Univ.,” Vol. IV. p. 53; “Biogr. Britannica”; Hutton, “Mathem. Dict.”; “British Annual,” I. =A.D. 1599.=--Wright (Edward), English mathematician, connected with the East India Company and author of the Preface to Gilbert’s original “De Magnete,” published in London “Die Havenvinding--The Haven-finding Art: Translation of Simon Stevinus’ ‘Portuum investigandorum ratio,’” in which is urged the advantage of keeping registers of the variations observed on all voyages. Thus, says Lardner, the _variation of the variation_ not only as to time, but as to place, had at this period begun to receive the attention of those engaged in navigation. Wright constructed for Prince Henry a large sphere which represented the motion of the planets, moon, etc., and he predicted the eclipses for seventeen thousand one hundred years. He is said to have discovered the mode of constructing the chart which is known by the name of Mercator’s Projection.