The apology of Sr. Francis Bacon, Kt in certain imputations concerning the late Earl of Essex written to the Right Honourable his very good Lord the Earl of Devonshire, Lord Lieutenant of Ireland - Bacon, Francis 1561-1626 (Printed by S.G. & B.G. for William Lee, 1670)
Reproduction of original in the British Library. - Running title: The Lord Bacon's apology touching the late Earl of Essex. - Wing, B268