James Bruce,
Select Specimens of Natural History Collected in Travels to Discover the Source of the Nile…
“ As for that species bearing the monstrous horns, of which I have often spoke in my narrative, their size is not to be estimated by that of their horns; the animal itself is not near so big as a common English cow; the growth of the horn is a disease which proves fatal to them, because encouraged for a peculiar purpose. Whether it would be otherwise curable, has not yet, I believe, been ever ascertained by experiment. ”
