The exit from it on the south side is by St.John's Lane, at the entrance to which stands a survival from a buried world--the embattled and windowed archway which is all that remains above ground of the great Priory of St.John of Jerusalem.

Here dwelt the Knights Hospitallers, in days when Clerkenwell was a rural parish, distant by a long stretch of green country from the walls of London.

But other and nearer memories are revived by St.John's Arch.

In the rooms above the gateway dwelt, a hundred and fifty years ago, one Edward Cave, publisher of the _Gentleman's Magazine_, and there many a time has sat a journeyman author of his, by name Samuel Johnson, too often _impransus_.

There it was that the said Samuel once had his dinner handed to him behind a screen, because of his unpresentable costume, when Cave was entertaining an aristocratic guest.