The clocks of St. Paul’s Cathedral, Westminster Palace, and the Royal Exchange, are three of the largest clocks in London. The St. Paul’s hour-hands are the height of a tall man; the hour struck by this clock has been heard at midnight on the terrace of Windsor Castle; and from the telegraph station on Putney-heath the hour has been read by the St. Paul’s clock-face without the aid of a telescope: the hour-numerals are 2 feet 2½ inches in height. This clock once struck thirteen, which being heard by a sentinel, accused of being asleep at his post at that hour, was the means of saving his life; this striking thirteen was caused by the lifting-piece holding on too long. The former church of St. Paul, Covent Garden, built by Inigo Jones, contained within the pediment a pendulum-clock, made by Richard Harris in 1641, and stated by an inscription in the vestry to be the first pendulum-clock made.[14] The Horse Guards Clock is properly described by Mr. Denison as “a superstitiously venerated and bad clock;” it is minutely described by Mr. B. L. Vulliamy in the _Curiosities of London_, pp. 378-380. St. James’s Palace Clock, made by Clay, clockmaker to George II., strikes the hours and quarters upon three bells; it requires to be wound up every day, and originally had but one hand. We were told by the late Mr. B. L. Vulliamy, that when the gatehouse was repaired in 1831, the clock was removed, and not put up again, on account of the roof being reported unsafe to carry the weight. The inhabitants of the neighbourhood then memorialised William IV. for the replacement of the timekeeper: the King, having ascertained its weight, shrewdly inquired how, if the tower-roof was not strong enough to carry the clock, it was safe for the number of persons occasionally seen upon it to witness processions, &c. The clock was forthwith replaced, and a minute-hand was added, with new dials: the original dials were of wainscot, in a great number of very small pieces curiously dovetailed together. Trinity College, Cambridge, has a double-striking clock, put up by the famous Dr. Bentley; striking, as it used to be said, once for Trinity and once for his former college, St. John’s, which had no clock. The clock of St. Clement’s Danes, in the Strand, strikes twice; the hour being first struck on a larger bell, and then repeated on a smaller one; so that if the first has been miscounted, the second may be more correctly observed.