Note 1310 — AN ESSAY ON MAN, IN FOUR EPISTLES (continued 3)
Reading edition
The poet probably took the hint of this passage from Lord Bacon's De augmentis scientiarum: "Who taught the raven in a drought to throw pebbles into an hollow tree where she espied water, that the water might rise so as she might come to it? Who taught the bee to sail through such a vast sea of air, and to find a way from the field in flower, a great way off to her hive?"—Ruffhead.