CHIME CLOCKS are a great addition to the attractions of a house. They are usually made to go eight or fifteen days; to strike the hours and quarters on four or eight bells or gongs. MUSICAL CLOCKS are constructed so as to play several tunes at certain intervals with the greatest finish and perfection. The mechanism for time-keeping being easily disconnected from the musical mechanism, the latter may be stopped without any interference with the clock as a time-keeper. CARRIAGE CLOCKS are made so as to be unaffected by the motion of the vehicle. They are usually of a small and squarish shape, enclosed in leather, so as to protect the case from scratches; but they vary in size,--measuring usually from four to seven inches high by two-and-a-half to four inches in breadth and the same in depth. Some are made without striking movement, some to strike hours, half-hours, and quarters, some with repeating work, and some with an alarm added to them. +----------------------------------------------------------------------+ | [Illustration: Carriage Clock.] | +----------------------------------------------------------------------+ LIBRARY and DINING-ROOM CLOCKS are frequently seen decorated with highly elegant ornaments, in bronze, marble, ormolu, and with miniature figures, as well as objects of still life, but these clocks are usually not so conspicuously ornamental as those which are designed for the drawing-room. SKELETON CLOCKS are so named from their movements being all bare and uncovered. When watches were comparative novelties it was not at all an uncommon desire on the part of their possessors to watch the operations of a mechanism which was regarded as wonderfully resembling life itself. Watch cases were consequently made of crystal, and were found strong and serviceable. In skeleton clocks the escapement is sometimes made a peculiarly interesting feature to the non-professional eye delighting in noting the amazing accuracy with which each piece of the mechanism works and combines to produce the result required. REGULATOR CLOCKS are, as we have said, the most perfect time-pieces which can be manufactured. TELL-TALE CLOCKS are of great service in securing the attention and watchfulness of persons left in care of premises or property. They are made with a number of pins projecting round the edge of the dial, and coming into contact once every quarter of an hour with a pin fixed at the top part of the dial, over the part which in an ordinary clock is occupied by XII. The dial revolves completely once every twelve hours, and presents one of the projecting pins to the index every quarter of an hour; the watchman should then be ready at hand to pull a cord, by means of which the projecting pin is pushed in; otherwise the dial shows the exact time of his absence and neglect of duty.