At the London Exhibition of 1862, the Messrs. Yarrow and Hilditch, of Barnsbury, near London, exhibited a steam carriage, designed and made by T. W. Cowan, of Greenwich. Eleven passengers, besides the driver and the fireman, were carried and the vehicle with full load weighed two tons and a half. The boiler, of steel, was a vertical multitubular two feet in diameter and three feet nine inches high. The frame of the carriage was of ash, lined with wrought-iron plates, and to the outside of the bottom sill were two iron foundation plates, to which the cylinders and other parts were attached. The cylinders were five inches in diameter and had nine-inch stroke. CHARLES T. HAYBALL A quick-speed road locomotive was made by Charles T. Hayball, of Lymington, Hants, England, in 1864. The machinery was mounted upon a wrought-iron frame, that was carried upon three wheels. The two driving wheels had an inner and an outer tire, and the space between was filled with wood to reduce noise and lessen the concussion. The two steam cylinders were each four and one-half inches in diameter and with six-inch stroke. Hayball used a vertical boiler, two feet two inches in diameter, and four feet high, working at a pressure of one hundred and fifty pounds. The carriage ran up an incline of one in twelve at sixteen miles an hour, and traveled four miles an hour in fourteen minutes, up hill and down, with ten passengers on board. ISAAC W. BOULTON In August, 1867, Thomas Boulton says: "I ran a small road locomotive constructed by Isaac W. Boulton, of Ashton-under-Lyne, from here through Manchester, Eccles, Warrington, Preston Brook, to Chester, paraded the principal streets of Chester, and returned home, the distance being over ninety miles in one day without a stoppage except for water." Boulton's engine had one cylinder four and one-half inches in diameter, and with nine-inch stroke. The boiler worked at one hundred and thirty pounds pressure per square inch. The driving wheels were five feet in diameter. Two speeds were obtained by means of spur gearing between the crank shaft and the counter shaft. On the Chester trip six persons, and sometimes eight and ten passengers, were carried. ARMSTRONG The virtues of the horseless vehicle early penetrated to India. Many English manufacturers sent carriages there. Some time in 1868, a steam carriage, with two steam cylinders, each three inches in diameter, and with six-inch stroke, was made by Armstrong, of Rawilpindee, Punjab. A separate stop valve was fitted to each cylinder. The boiler was fifteen inches in diameter and three feet high, and worked steam pressure of one hundred pounds per square inch. Twelve miles an hour on the level, and six miles an hour up grade of one in twenty, were made. The driving wheels were three feet in diameter. PIERRE RAVEL