Telegram from WSC to President Roosevelt marked "personal and secret" regarding assistance for the Soviet Union: states that there is no possibility of letting shipping convoy PQ19 sail to the Soviet Union in successive groups, that the cancellation of the convoy can no longer be concealed from the Russians, and comments on preparations to sail ten individual ships manned by volunteers during the October dark; argues that Stalin should be told now; states that nothing can be done with regard to "Velvet" [codename for proposal to establish an Anglo-American air force on the Soviet southern flank] until after the battle in Egypt but suggests that they could be more definite about the composition of the force; comments on the message to be brought to Roosevelt by Admiral William Standley [United States Ambassador to the Soviet Union] which WSC does not believe threatens a separate peace.Includes appendix, consisting of text of note by Admiralty outlining the case for individual sailing's to the Soviet Union rather than smaller conoys.