Sloane MS 3645 fols. 22-38, 'A worthy specimen of the great Catastrophie...' is a 17th century English translation of Dee's 'Praefatio Latina in Actionem...' on which see my response on the Ashmole MS 1790 thread.
Clay Holden included a transcript of this as an appendix to the Magickal Childe (1992) edition of 'A True and Faithful Relation...'