on any starry night, which constellation we commonly call the Great Dipper, the bowl of the dipper, which is located in the body and flank of the bear, leads in its apparent motion around the pole star, being followed by the handle of the dipper or the tail of the bear (Fig. 139). On the surface of the celestial sphere, however, the position of bowl and handle was usually reversed, the constellation appearing as it would to the beholder who finds himself beyond the stars. Naturally the planets could not be represented on the surface of a solid celestial sphere; only in the armillary sphere or the orrery could they find place. In these instruments we generally find them represented, each with its circle or orbit properly given, and relatively properly placed. [Illustration: Fig. 138. Constellation Ursa Major.] In the geographical records as they appear on the several terrestrial globe maps, it is to be admitted that the authors, with rare exceptions, undertook to set down what they thought to be fact, shall we say the real tangible geographical fact or facts. The maker of the star map, on the contrary, clearly gave his imagination play, not in his attempt to mark in the proper location the several stars as they came to be known and catalogued, but in the draughting of the figures of the several constellations. The imaginative figures of the ancients, of Eudoxus, of Aratus, of Ptolemy and others survived throughout the period we have had under consideration, and to the forty-eight constellations of Ptolemy others from time to time were added until more than one hundred have been named and figured. In general the several constellations, as the various astronomers and makers of star maps have conceived them, may be said to be identical, while some of the names which have been proposed have been accepted but for a time only and then rejected. Some of the groups to which names have been given have later been divided, thus giving rise to a new group name and to the draughting of an appropriate figure for this new group.[204] Attention has been called to certain suggested changes in the names of constellations as given by the ancients, as for example those suggested by the Venerable Bede, by Johannes Bayer, by Julius Schiller proposing that biblical or Christian names should be substituted for pagan names, and for these changes there was of course suggested an appropriate change in the figures for the several constellations. The proposal of Erhard Weigel has likewise been noted urging a substitution of the several coats of arms or heraldic devices of the European dynasties for the figures which had been so long and so generally accepted. There seems scarcely to be the need of stating that the names and figures of the ancients remain.[205]