The Leech
The Leech has, from a very early age, been used as a means of letting
blood; but, among the old Romans, it had medicinal uses such as we know
not of now. It was used as a hair dye. Pliny gives two receipts for
making it, and it must have been powerful stuff, if we can believe his
authority:--"Leeches left to putrify for forty days in red wine, stain
the hair black. Others, again, recommend one sextarius of leeches to be
left to putrefy the same number of days in a leaden vessel, with two
sextarii of vinegar, the hair to be well rubbed with the mixture in the
sun. According to Sornatius this preparation is, naturally, so
penetrating, that if females, when they apply it, do not take the
precaution of keeping some oil in the mouth, the teeth, even, will
become blackened thereby."
Olaus Magnus gives us the accompanying picture of the luxurious man in
his arm-chair by the river-side, catching his own leeches, and suffering
from gnats; and also his far more prudent friend, who makes the
experiment on the vile body of his horse, and thus saves his own blood;
but he gives us no account of its habits and customs.