A manifesto, or, An account of the state of the present differences between the most serene and potent King of Denmark and Norway Christian the V., and the most serene Duke of Sleswick and Holstein-Gottorp Christian Albert : together with some letters of the King of Great Britain, the King of Denmark, and the Duke of Holstein-Gottorp, concerning a mediation in these differences, which the king of Great Britain most generously offer'd, and the king of Denmark refused and slighted : as also some other letters of the Dukes of Brunswick-Lunenbourgh, the emperor, &c., whereby the calumnies of a certain Danish minister are plainly detected.