Two treaties between His Britannick Majesty, and her imperial Majesty of all the Russias. The first at Moscow, December 11. 1742. The other at St. Petersburg, September 19/30, 1755. Together with six separate and secret articles belonging thereto. Also, a treaty between His Britannick Majesty, and the landgrave of Hesse-Cassell, signed at Hanover, June 18, 1755