Arthur J. Burdick, The Mystic Mid-Region: The Deserts of the Southwest
“ They are fitted with tires eight inches wide and an inch thick, and an empty wagon weighs seventy-eight hundred pounds. In addition to this combined weight of wagon and load, amounting to about fourteen tons, is the trailer, as is called the water wagon, which it is necessary to attach to the train in order that man and beast may not perish of thirst on the journey. Altogether, the plucky teams have to haul through the yielding sands about twenty tons—nearly or quite one ton to the beast. ”
