Everything is soothed by oil, and this is the reason why divers send out small quantities of it from their mouths, because it smooths every part which is rough.
– Pliny the Elder
Natural History, Book II, Chapter 103.
Everything is soothed by oil, and this is the reason why divers send out small quantities of it from their mouths, because it smooths every part which is rough.
– Pliny the Elder