E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Procris.
Unerring as the dart of Procris. When Procris fled from Ceph’alus out of shame, Diana gave her a dog that never failed to secure its prey, and a dart which not only never missed aim, but which always returned of its own accord to the shooter. (See CEPHALUS.)
