Unlike the bacilli of anthrax and blackleg, which are confined to certain districts, this organism is widely distributed and found in ordinary garden soil, foul water, and in the normal intestinal tract of the Herbivora.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
In the salt plants on these plains, nature has amply provided for this taste of these large Herbivora for salt.
"Journal of an Expedition into the Interior of Tropical Australia In Search of a Route from Sydney to the Gulf of Carpentaria (1848) by Lt. Col. Sir Thomas Livingstone Mitchell Kt. D.C.L. (1792-1855) Surveyor-General of New South Wales"
Thomas Mitchell
Present in all vertebrates, there seems to be more of it in the carnivora than in the Herbivora, like the thyroid.
"The Glands Regulating Personality"
Louis Berman, M.D.