Blaeu’s reference to the prime meridian was cited in full as was that of Moroncelli; Coronelli’s reference is here likewise cited, which, it will be noted, is not without errors. It is one having to do with problems concerning the determination of longitude, hence involving interests of vital concern to navigation. “Del primo meridiano. Sono in questo 72 meridiani, 36 con linee continuate, le altre sono di punti, da ciascuno dei quali è diviso in G. 5 di longitudine che è il corso del Sole in un terzo d’oro. Li Geografi antichi e moderni non convengono nel luogo dove passa il primo meridiano; tra li primi Eratostene l’ha posto alle Colonne d’Hercole, Marino di Tyr all’Isole Fortunate, Tolomeo nella sua Geografia ha seguito la stessa opinione; ma ne’ suoi libri di Astronomia l’ ha passato per Alessandria d’Egitto. Tra li moderni Ismaele Abulfeda lo segna a Cadiz, Alfonzo a Toledo, Pigafetta et Herrera hanno fatto il medisimo; Copernico lo pone a Freudenburgo; Renoldo a Monte Reale o Konisberg; Keplero a Uraniburgo; Longo Montano a Kopenhagen; Lansbergius a Goes; Ricciolo a Bologna. Gli Atlanti di Jansonio e di Blaeu a Monte Pico. Per continuare l’origine della mia Geografia ho posto in questo Globo il primo meridiano nella parte più occidentale della Isola di Ferro, com’onche per seguire il Decreto di Luigi XIII, che col consiglio de’ Geog. nel 1634 lo determinò in questo stesso luogo.” “Concerning the first meridian. There are represented on this 72 meridians, 36 with continuous lines--the others are marked,--by each of which it is divided into 5 degrees of longitude, which is the course of the sun in one third of an hour. The ancient and modern geographers do not agree upon the place through which the first meridian passes: among the former, Eratosthenes put it at the Pillars of Hercules; Marinus of Tyre at the Canary Islands; Ptolemy in his geography has followed the same opinion, but in his books on astronomy he has located it as running through Alexandria in Egypt. Among the moderns, Ismail Aboulfeda puts it at Cadiz; Alfonso at Toledo; Pigafetta and Herrera have done the same; Copernicus puts it at Freudenberg; Reinhold at Mount Royal (Königsberg); Kepler at Uranienburg; Longomontanus at Copenhagen; Lansberg at Goa; Ricciola at Bologna; the atlases of Jansson and Blaeu at Mount Pico. To continue the precedent of my geography I have on this globe placed the first meridian in the most western part of the Island of Ferro,--as also to follow the decree of Louis XIII, who on the advice of the geographers in 1634 assigned it to this same place.” California he lays down as an island, west of which is a legend relating to “Nuova Albione,” and north in the Pacific one relating to “Stretto di Anian.” There is reference to the route to Goa, which is placed near the Island of Madagascar. The reference to the Zambesi River clearly gives evidence of acquaintance with Portuguese records of which we have no other knowledge. This legend reads, “Rio