of
human beings, there is some slight analogy, as the animal bezoar
concretions seem to have been formed about a nucleus consisting of some
indigestible material that has been swalÂlowed by an animal. From the
report of hospital surgeons, it appears that these hair-balls, which
result from a long-
" S.
de Vries, " Curieuse Aenmerkingen der byzonderste Oost en West-Indische
Verwonderens-waerdige Dingen," Utrecht, 1682, Pt. II, pp. 912, 913.