HENRY H. BREEN.

St. Lucia.

"_Gutta cavat lapidem._"--Can any reader of "N. & Q." inform me whence the

following verse is taken?

"Gutta cavat lapidem, non vi sed sæpe cadendo."

The first half, I know, is the commencement of a line in _Ov. ex Ponto_,

Ep. x. v. 5., which concludes with--

"... consumitur annulus usu."