The clock which Henry II. had constructed for the château of Anet has long been regarded as very curious. Every time the hand denotes the hour, a stag appears from the inside of the clock, and darts away followed by a pack of hounds; but soon the pack and the stag stop, and the latter, by means of very ingenious mechanism, strikes the hours with one of his feet. The clock of Jena (Fig. 151), which is still in existence, is not less famous. Above the dial is a bronze head presumed to represent a buffoon of Ernest, Elector of Saxony, who died in 1486. When the hour is about to strike, the head--so remarkably ugly as to have given the clock the name of the _monstrous head_--opens its very large mouth. A figure representing an old pilgrim offers it a golden apple on the end of a stick; but just when poor Hans (so was the fool called) is about to close his mouth to masticate and swallow the apple, the pilgrim suddenly withdraws it. On the left of the head is an angel singing (the arms of the city of Jena), holding in one hand a book, which he raises towards his eyes whenever the hours strike, and with the other he rings a hand-bell. The town of Niort, in Poitou, possessed also an extraordinary clock, ornamented with a great number of allegorical figures--the work of Bouhain, [Illustration: Fig. 151.--Clock of Jena, in Germany. (Fifteenth Century.)] in 1570. A much more famous clock was that of Strasburg (Fig. 152), constructed in 1573, and which was long considered to be the greatest of all wonders. It was entirely restored in 1842 by M. Schwilgué. Angelo Rocca, in his “Commentarium de Campanis,” gives a description of it. Its most important feature was a moving sphere, whereon were represented the planets and the constellations, and which completed its rotation in three hundred and sixty-five days. On two sides of the dial and below it the principal festivals of the year and the solemnities of the Church were represented by allegorical figures. Other dials, distributed symmetrically on the façade of the tower in which the clock is situated, marked the days of the week, the date of the month, the signs of the zodiac, the phases of the moon, the rising and setting of the sun, &c. Every hour two angels [Illustration: Fig. 152.--Astronomical Clock of the Cathedral at Strasburg, constructed in 1573.]