s movement impels the fourteen others, and is wound up weekly, being driven by weights in the usual way. The other dials are calendars of the days of the week and of the month, the month, year, zodiacal signs, eclipses, phases of the moon, etc. This clock shows seconds of time, and indicates events occurring not oftener than once in 100 years; for instance, it must be remembered that three centuries out of four the last year leaps its bissextile.
In these years the clock has to leap from February 29, and goes from the 28th to the 1st of March.
Here is a movement occurring only in 400 years.
A Strasbourger, jealous for the honor of his townclock, seeks to outrank these Beauvais claims, and says: —
Our cathedral clock shows all these indications and some besides.
It contains an ecclesiastical computator with all its indications; the golden number, the epacts, dominical letter, solar cycle, etc.; a perpetual calendar with the movable feasts, a planetarium on the Copernican syste