c. 386–390
Latin
The Hexaemeron
Ambrose of Milan · c. 339 – 397
Nine sermons on the six days, preached in Holy Week and following Basil closely while filling the natural history with Ambrose's own enthusiasms — the habits of bees, the cunning of the crab that drops a pebble into the oyster's shell, the pelican, and the phoenix as a figure of the resurrection.