The Mathematisch-Physikal. Salon of Dresden possesses a fine celestial globe signed and dated “B. F. 1600.” It is an exceedingly elaborate piece (Fig. 87), being made of gilded bronze and furnished with a mounting of ornamental design. The sphere, having a diameter of 11.6 cm., exhibits on its engraved surface in outline the figures of the several constellations, with the name of each, and in addition the principal celestial circles including the meridians. It is furnished, in its mountings, with a graduated bronze meridian circle to which is attached, near the north equatorial pole, a clock dial with hour and minute hands, the dial being marked with the hours from I to XII. Surmounting the whole is an artistic bronze box, within which have been placed the works by means of which the clock is driven and the sphere made to revolve. The broad horizon circle, which is engraved with the usual concentric circles, rests upon branched supports, which in turn are attached to a finely wrought base having four curved legs terminating in conventionally designed griffin claws. [Illustration: Fig. 87. Celestial Globe of B. F., 1600.] Though differing very considerably in the details of its construction, it may be classed with such globes as are those made by Roll and Reinhold, briefly described above. Indeed, the suggestion forces itself upon one that to their workshop or to one who may be referred to as a workman of their school, we owe this interesting example. Attention has been previously called to certain early globes which seem primarily to have been constructed to contain the works of clocks such as the Jagellonicus. Here as in the case of the Roll and Reinhold globes, and as in certain other examples, we find clockwork attachments designed to regulate the revolutions of the globe of which they form a part. While the globe is the more elaborately wrought part of this particular example, it does not seem improbable that the clock originally was considered to be the more important part. NOTES [334] See Chap. X. [335] Kästner. Geschichte der Mathematik. Vol. II, pp. 215 ff.; Wolf, R. Notizen zur Geschichte der Mathematik in der Schweiz, “Conrad Dasypodius.” (In: Mitteilung der naturforschenden Gesellschaft zu Bern. Bern, 1845. No. 56.); Allgemeine deutsche Biographie, “Dasypodius, Conrad.” [336] Doppelmayr. Historische Nachricht. p. 51. [337] Schricker, A. Z. Zur Geschichte der Universität Strassburg. Strassburg, 1872; Heitz, E. Zur Geschichte der alten Strassburger Universität. Strassburg, 1885. [338] The British Museum Catalogue lists many of these works. [339] Wolf, R. Nachrichten. (In: Mitteilung der naturforschenden Gesellschaft zu Bern. Bern, 1854. p. 69.); Doppelmayr, op. cit., p. 115; Habrecht, I. Tractatus de planiglobis coelestis ac terrestris. Strassburg, 1628. [340] Doppelmayr, op. cit., p. 208. [341] Montucla, J. E. Histoire des Mathématiques ... Paris, 1799-1802.