that one is in their center in order to conceive them. The stars of the globe are represented as calculated for the year 1700. Those included in the constellations of Bayer, as the best known, in order that they, with greater ease may be compared with ours, are designated by the Greek and Latin characters used by him. Stars, which according to Bayer remain undetermined, are indicated by us as yellow; the new ones colored with red; those observed by P. Antelmo, with green, those of Halley with violet, the others of Hevelius with lake color; the stars corrected by Bayer with cinnabar; and the observations made by other authors are distinguished in our Cosmographical Epitome, printed in Venice in 1693. In this also are elucidated the numbers, characters, the lines that pass diametrically through the stars, their obliquity, length, extremity, the planets that accompany them, the daily movement of the comets, traced for many centuries, and every other particular which because of the limitations of space it is not here permitted to express,--without which book it is not possible to make use of the present globes, which are also described in our Venetian Atlas, but not so detailed.” Pairs of his globes are very numerous which include the terrestrial of the year 1688, now and then with some modifications, and the celestial of the year 1693, these being usually, but not in all instances dated, the latter being the Paris issue or apparently a slightly modified Venetian edition of the same. It must be admitted that it is not easy to classify the copies of his globes which followed his first issue of the year 1688, but which have the same dimensions. In not a few of these provision was made for a special dedication, the cartouch for such dedication being often left blank, to be filled when occasion seemed to offer for the bestowal of the special honor. Some of these globes containing such special dedication are known, to which reference is made below.