Johann Gabriel Doppelmayr (1671-1750) was one of Nürnberg’s famous eighteenth-century mathematicians who was especially distinguished as writer, translator, editor, and teacher.[148] A part of his early training he received at the Egedian Gymnasium of his native town, where from 1704 to the time of his death he was actively engaged as teacher of mathematics and physics. In the year 1696 we find him registered as a student of law at the University of Altdorf, though turning betimes with much enthusiasm to the study of mathematics under the direction of Joh. Christoph Sturm. In the year 1700, after some months passed at the University of Halle, he determined to add to his equipment for his life work such experience as could be gained through travel; accordingly he visited in turn the more important cities of his own country and those of Holland and England, spending in his travels a period of ten years. Among his more important publications may be mentioned a translation of the ‘Astronomy’ of Thomas Street,[149] a work by Bion in a German translation from the French, which at the same time he enlarged.[150] His ‘Einleitung zur Geographie,’ appearing as an introduction to Homann’s ‘Atlas’ issued in the year 1714, and his ‘Atlas Coelestis,’ issued in the year 1742, are among his more important works original in character, which he published on the subject of geography and astronomy. His principal work is his ‘Notes’ on the mathematicians and artists of Nürnberg.[151] It was doubtless through his connection with the cartographical establishment of Homann that he felt induced to undertake the construction of his globes, examples of which exist dated 1728. In the collection belonging to The Hispanic Society of America (Fig. 126) there may be found a fine example of his terrestrial globes, which has a diameter of about 32 cm. Over a carefully prepared hollow wooden ball twelve gores, cut at the line of the equator and five degrees from each pole, have been pasted. The small polar spaces lying between latitudes 85 degrees, both north and south, are covered by circular discs, having a diameter of but ten degrees, on the one is engraved “Polus Arcticus” and on the other “Polus Antarcticus.” The globe is furnished with a narrow graduated meridian of brass within which the sphere turns on its polar axis, a horizon circle of wood, circular on its inner edge but octagonal on the outer. The engraved paper strip containing the zodiacal figures, calendar, and directions, has practically disappeared. The base support consists of four small turned columns of wood, attached at their lower extremities by crossbars over which is a circular plate, provision having been made for insertion into its surface of a compass, which instrument, however, has disappeared. Excepting slight damage to its horizon circle the globe may be said to be in an excellent state of preservation. In a neat cartouch in the North Pacific is the title