James F. J. Archibald,
Blue Shirt and Khaki: A Comparison
“ The ox-carts and great trek-wagons were chiefly used for commissary supplies, but they were so heavy as to be unsuitable for the work. An ox-cart was drawn by a span of sixteen or twenty animals, while the army wagon was drawn by ten mules. This was almost twice the number necessary, and the superfluous stock greatly delayed the operations, for it could not carry much more than its own feed. Those mules were much smaller than our big army mules, but six would have been ample for any ordinary160 load. When more are used, there is a great amount of energy lost. ”
