House of Commons, Great Britain, Report from the Select Committee on Steam Carriages… (1831)
“ As far as you have observed, is the injury done to the roads by the passing of the Carriage, greater or less than that by a Carriage drawn by horses?—I think, taking the horses into the account, the injury must be much less; the tire of the wheels is three and a half inches wide, whereas many of the Stage Coaches are as heavy as the Steam Carriage, and with narrower wheels; and I think it is only fair to take the weight of the horses into the account, which I have found to be from eight to ten hundred weight each horse, consequently, four horses would weigh from a ton and a half to two tons. ”
