Various, The Mirror of Literature, Amusement…
“ The guide, who sits in front, keeps the vehicle in its proper course, by means of the pilot-wheels acting upon the pole, like the handle of a garden-chair. The weight of the carriage and its apparatus is estimated at 1-1/2 tons, and its wear and tear of the road, as compared with a carriage drawn by four horses, is as one to six. When the carriage is in progress the machinery is not heard, nor is there so much vibration as in an ordinary vehicle, from the superior solidity of the structure. The engine has a twelve-horse power, but may be increased to sixteen ”
