There are many springs which are remarkable for their warmth. This is the case even among the ridges of the Alps[656], and in the sea itself, between Italy and Ænaria, as in the bay of Baiæ, and in the Liris and many other rivers[657]. There are many places in which fresh water may be procured from the sea, as at the Chelidonian Isles, and at Arados, and in the ocean at Gades. Green plants are produced in the warm springs of Padua, frogs in those of Pisa, and fish in those of Vetulonia in Etruria, which is not far from the sea. In Casinas there is a cold river called Scatebra, which in summer is more full of water[658]. In this, as in the river Stymphalis, in Arcadia, small water-mice are produced. The fountain of Jupiter in Dodona, although it is as cold as ice, and extinguishes torches that are plunged into it, yet, if they be brought near it, it kindles them again[659]. This spring always becomes dry at noon, from which circumstance it is called Ἀναπαυόμενον[660]: it then increases and becomes full at midnight, after which it again visibly decreases. In Illyricum there is a cold spring, over which if garments are spread they take fire. The pool of Jupiter Ammon, which is cold during the day, is warm during the night[661]. In the country of the Troglodytæ[662], what they call the Fountain of the Sun, about noon is fresh and very cold; it then gradually grows warm, and, at midnight, becomes hot and saline[663]. In the middle of the day, during summer, the source of the Po, as if reposing itself, is always dry[664]. In the island of Tenedos there is a spring, which, after the summer solstice, is full of water, from the third hour of the night to the sixth[665]. The fountain Inopus, in the island of Delos, decreases and increases in the same manner as the Nile, and also at the same periods[666]. There is a small island in the sea, opposite to the river Timavus, containing warm springs, which increase and decrease at the same time with the tides of the sea[667]. In the territory of Pitinum, on the other side of the Apennines, the river Novanus, which during the solstice is quite a torrent, is dry in the winter[668].