passage to China before 1605. That part of “Nova Zemla” which was visited is laid down, as are also “Nieuland” and “Beeren Eylandt,” the names of all places designated being in the Dutch language, though an extensive legend north of Nova Zemla, calling attention to the efforts of his countrymen to find a northeast passage, is given in Latin, as are all the more lengthy legends. A comparison of the maps of Hondius and Blaeu in this particular region is interesting, the latter preparing his map before the voyage of Henry Hudson, the former making record of Hudson’s attempt to sail through this Arctic sea and noting that he had discovered a great ice barrier, “Glacies ab Hudsono detect anno 1608.” Finding it impossible to make this passage, it will be recalled that Hudson decided to turn his expedition to the west and the northwest, reaching in due course of sailing the east coast of North America, which he explored in his two voyages from Hudson River to Hudson Bay, losing his life in this great northern sea, which bears his name, in the year 1611. Blaeu has inscribed numerous legends in the northern and northeastern sections of North America, calling attention in one of these to the expeditions of Columbus, Vespucci, Cortereal and Verrazano, in another to the expedition of Forbischer in 1577, and in yet another to the explorations of Davis in 1585, 1586, 1587. Numerous legends, it may here be noted, appear in different parts of the map, either descriptive of the region in which they respectively appear or calling attention to certain astronomical and geographical questions, as, for example, the lengthy legend on sheets fourteen-fifteen, sheet seventeen and sheet eighteen. In a map of this character one may say the particular scientific and historical value lies in the latest records it contains relative to exploration and discovery. Without giving here the numerous specific references to such events, or to their results as they relate to the expansion of geographical knowledge, it may be stated that Blaeu’s map is one of the richest of the period. His geographical names in the Old World alone extend into the thousands, and for the New World those both of coast and of interior are exceedingly numerous.