Letter from Arthur Balfour [later Lord Balfour] (4 Carlton Gardens, Pall Mall, [London]) to WSC returning his memorandum [on the naval situation at home and in the Mediterranean] and expressing anxiety that Britain and France may be left without eachother's assistance in the first fortnight of a war. Annotated by WSC with the names of the Prime Minister and Sir Edward Grey [later Lord Grey of Fallodon].