


Dennis, A. P. (1899, November). Life on a Yukon Trail. The National Geographic Magazine, pp. 457-466




Source: E. M. B. (1901, August 31). The dogs of Flanders. Country Life, pp. 268-269


Voogt, G. D. (1907). Our domestic animals, their habits, intelligence and usefulness. Boston, Massachusetts: Ginn & Co.






Showalter, W. J. (1914, September). Belgium: The innocent bystander. The National Geographic Magazine, pp. 223-263

Source: Mason, W. E. (1915). Dogs of all nations. [S.l., s.n.]

From National Geographic Magazine, June 1918.

Very interesting. In the 300-lb wheelbarrow photo, I keep seeing a pig hitched to the wheelbarrow. I have to kind of squint to see a dog.