The Northern Crisis, Or, Impartial Reflections on the Policies of the Czar. [By Count C. Gyllenborg.] Occasioned by Mynheer Von Stocken's Reasons for Delaying the Descent Upon Schonen [i.e. the Memorandum Issued on Behalf of the King of Denmark Dated 10 Oct. 1716]. A True Copy of which is Prefix'd, Verbally Translated After the Tenour of that in the German Secretary's Office in Copenhagen, Etc