The War Illustrated, Volume 3, No. 49, Page iii, August 9, 1940.

An unhappy mis-typing that escaped the eyes of editorial and printers' readers caused the extraordinary statement in this page in No. 47, dated July 26, that the "Tetrarch" had been sunk. The intention was actually to record a fine achievement of the "Tetrarch" and the paragraph should have read:

The "Tetrarch", British submarine, completed recently, which has sunk an 8,000-ton enemy transport, is sister ship of the ill-fated "Thetis" that foundered in Liverpool Bay in June of last year.