There are two maps of Hygden (A.D. 1350), but the abundance of islands which they present can hardly be said to show more than a theory.[501] There is more likelihood of well considered work in the Portolano Laurenziano-Gaddiano (A.D. 1351), preserved in the Biblioteca Mediceo-Laurenziana at Florence, of which Ongania, of Venice, published a fac-simile in 1881.[502] There are two maps of Francisco Pizigani, which seem to give the Canaries, Madeira, and the Azores better than any earlier one. One of these maps (1367) is in the national library at Parma, and the other (1373) is in the Ambrosian library at Milan (_Studi biog. e bibliog._, vol. ii. pp. viii, 57, 58). The 1367 map is given by Jomard and Santarem. The most famous of all these early maps is the Catalan Mappemonde of 1375, preserved in the great library at Paris. It gives the Canaries and other islands further north, but does not reach to the Azores.[503] These last islands are included, however, in another Catalan planisphere of not far from the same era, which is preserved in the national library at Florence, and has been reproduced by Ongania (1881).[504] The student will need to compare other maps of the fourteenth century, which can be found mentioned in the _Studi_, etc., with references in the _Kohl Maps_, sect. 1. The phototypic series of Ongania is the most important contribution to this study, though the yellow tints of the original too often render the details obscurely.[505] So for the next century there are the same guides; but a number of conspicuous charts may well be mentioned. Chief among them are those of Andrea Bianco contained in the Atlas (1436), in the Biblioteca Marciana at Venice, published by Ongania (1871), who also published (1881) the Carta Nautica of Bianco, in the Biblioteca Ambrosiana in Milan.[506] [Illustration: ANDREAS BENINCASA, 1476. After a sketch in St. Martin’s _Atlas_, pl. vii.] The 1436 map has been reproduced in colors in Pietro Amat de San Filippo’s _Planisferio disegnato del 1436_ (_Bollettino Soc. Geografia_, 1879, p. 560); and a sketch of the Atlantic part is given in the _Allgem. Geog. Ephemeriden_, xxiv. no. 248.[507]