[Continued from SUPPLEMENT, No. 1080, page 17263.] THE DE DION AND BOUTON ROAD MOTOR. It was with a vehicle of the kind described in our last article that Messrs. De Dion and Bouton obtained a conspicuous success in 1894. In this competition they were the first to arrive at Mantes, doing the 36 miles in 3 hours, so that they made an average of 12 miles an hour; they were followed very closely by the Peugeot and Panhard-Levassor carriages. In spite of a series of difficult hills and bad roads, and an unintentional detour, they traversed the 48 miles between Mantes and Rouen in 4 hours 10 minutes. They recorded a speed of 15 miles an hour on some of the level roads, and on several occasions touched a maximum of 19 miles. The fact that they were able to ascend gradients of 1 in 10 at a speed of from 6 to 12 miles an hour sufficiently proved the efficiency of the machine. The same constructors ran another vehicle in this competition of a somewhat similar design, but not adapted for a traction engine; this carried six passengers, and weighed about 3,000 lb. in working order. It was mounted on a rectangular and strongly braced frame, and was furnished with a boiler similar to that already described, but having only some 14 square feet of heating surface, a capacity of about 6 gallons of water, and 18 rows of tubes. The ratio of gearing was 4.06; the small cylinder was 3.54 in. in diameter and the low pressure cylinder 5.51 in., the stroke being 3.94 in. About the same time Messrs. De Dion and Bouton built for one of their clients a carriage in which the driving wheels were entirely independent, each of them being driven direct by a separate steam engine without any intermediate gear. [Illustration: FIG. 10.] The Count de Dion was one of the most enthusiastic organizers of the Paris to Bordeaux competition in 1895, and naturally his firm took part in the trials. They entered three vehicles for competition; one of these, called No. 1, was the traction engine which had taken part in the 1894 trials, and which we have already described. For the second time this machine gave very excellent results, as it made the distance from Paris to Angoulème (280 miles) in 30 hours, but on account of various mishaps it had to run very slowly from Angoulème to Bordeaux (84 miles), taking, in fact, 31 hours for this part of the journey, and not arriving until long after it had been ruled out of the competition.