Mr. Schmidt sent his road locomotive to the Havre Exhibition, in 1868, and a trial of its powers was made by French engineers, and M. Nicole, director of the exhibition. Mr. Schmidt conducted the engine himself, and to it was attached an omnibus containing the commissioners. The engine and carriage traversed several streets of Havre and mounted a sharp incline. Other trips were made to several villages in the neighborhood of the exhibition, and the engine behaved very satisfactorily. STIRLING In a road steamer designed by Stirling, of Kilmarnock, in 1859, the five traveling wheels were mounted upon springs. A single wheel was used as a driver, and more or less weight was thrown upon this wheel. The leading and trailing wheels swiveled in concert, in opposite directions, by means of right and left hand worms and worm wheels. The carriage was thus made to move in a curve of comparatively short radius. W. O. CARRETT In 1860, George Salt, of Saltshire, England, employed W. O. Carrett, of the firm of Carrett, Marshall & Co., proprietors of the Gun Foundry at Leeds, to design and build a steam pleasure carriage for him. The carriage was first shown and exhibited at the Royal Show held in Leeds, 1861, and likewise at the London Exhibition, 1862. It had two steam cylinders, six inches in diameter and with eight-inch stroke. The boiler was of the locomotive multi-tubular type, two feet six inches in diameter, and five feet three inches long. It had a working pressure of one hundred and fifty pounds per square inch, the test pressure being three hundred pounds. The locomotive was mounted upon two driving wheels, each four feet in diameter, made of steel, and a leading wheel was three feet in diameter. Seats were provided for nine persons, including the steerer and the fireman. The traveling speed was fifteen miles an hour; and the weight of the carriage, fully loaded, was five tons. Motion was communicated from the crank shaft to the driving axle through spur gearing.