Histories

Other snakes, that do no harm to men, lay eggs and hatch out a vast number of young. The Arabian winged serpents do indeed seem to be numerous; but that is because (although there are vipers in every land) these are all in Arabian Peninsula [45,25] (region (general)), AsiaArabia and are found nowhere else.

The Arabians get frankincense in the foregoing way, and casia in the following way: when they go after it they bind oxhides and other skins all over their bodies and faces except for the eyes. Casia grows in a shallow lake; around this and in it live winged creatures, very like bats, that squeak similarly and make a fierce resistance; these have to be kept away from the eyes in order to take the casia.