Telegram from Sir Archibald Clark Kerr [British Ambassador to the Soviet Union, later 1st Lord Inverchapel] to WSC conveying the text of a message by Premier Joseph Stalin to WSC (dated 27 March 1942) regarding the possible use of poison gas against the Soviet Union by Germany or Finland: expresses gratitude for the British promise to make retaliatory gas attacks against Germany and asks for this to be extended to include Finland; asks the British Government to issue a public warning and offers to make a similar warning in case of a German gas attack on Britain; asks for help in obtaining certain chemical means of defence and counter-attack.