The large majority of cars to-day, especially those of the heavier and more expensive class—such as Daimlers, Napiers, Panhards, &c.—are fitted with wheel-gearing and chain transmission, and in these, although the constructional details may vary with different makers, the principles and general system are the

same. In the illustrations figs. 16 and 17 I have taken the transmission system of the 12 h.-p. Daimler to illustrate the type. This arrangement gives three speeds and a reverse. Others are more frequently arranged to give four speeds, but the system is the same. Fig. 16 shows the arrangement looking down from the top and fig. 17 is a sectional drawing of the gear