The secret history of the Calves-Head Club [electronic resource] : or, the republican unmask'd. With a large continuation, and an appendix to the history. Wherein is fully shewn, The Religion of the Calves-Head Heroes, in their Anniversary Thanksgiving-Songs on the xxxth of January, by them called Anthems, With Reflections thereupon. The seventh edition, with large Improvements; and a Description of the Calves-Head Club, and the Effigies of Oliver Cromwel and his Cabinet Council; curiously engrav'd on Copper Plates. To which is annex'd, a vindication of the royal martyr, King Charles the First. Wherein are laid open, the Republicans Mysteries of Rebellion. Written in the Time of the Usurpation, by the Celebrated Mr. Butler, Author of Hudibras. With a character of a Presbyterian, written by Sir John Denham, Knight; And the Character of a Modern Whig; or, The Republican in Fashion.