Minutes [from 1st Lord Cherwell, earlier F A Lindemann, Prime Minister's Personal Assistant] to WSC on the idea of WSC writing a letter to the managing director of a particular firm, producing weapons which effectively deal with tanks and aircraft, countering radio beam bombing, and comparing RAF, and German and Italian air force strengths in the Middle East and Mediterranean. [Copies; given running numbers 334, 335, 336, and 337].

Minutes [from 1st Lord Cherwell, earlier F A Lindemann, Prime Minister's Personal Assistant] to WSC on torpedo output, attacking German oil (referring to "W.P. (41) 162"), the Whittle engine trials, and call-sign evidence from German aeroplanes on the Russian front. [Copies; given running numbers 345, 346 and 347].

Minutes [from 1st Lord Cherwell, earlier F A Lindemann, Prime Minister's Personal Assistant] to WSC on an intelligence mistake in WSC's "Blue Book" and German high explosive bombs. [Copies; given running numbers 348 and 349].

Minutes [from 1st Lord Cherwell, earlier F A Lindemann, Prime Minister's Personal Assistant] to WSC on methods for ships to send wireless messages with only a slight risk of being located, maintaining "normal amenities" such as brewery plant, and dropping sabotage devices in occupied territory. [Copies; given running numbers 368, 369, 370, and 371].

Minute [from 1st Lord Cherwell, earlier F A Lindemann, Prime Minister's Personal Assistant] to WSC on experiments on clearing aerodromes of fog. [copy; given running number 420].

Minute [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on searchlights on aircraft. [Copy; given running number 264].

Minutes [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on countering the torpedo threat to convoys and supplying "D.B. 7's". [Copies; given running numbers 257 and 258].

Minute [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on measures against aircraft directing U-boats, suggesting setting up radar stations on vessels and land, and disturbing communications. [Copy; given running number 254].

Minutes [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on "Spitfire" losses, WSC broadcasting on the need for scientists for radar work, and differences in army figures between WSC and [Sir James] Grigg [Secretary of State for War]. [Copies; given running numbers 247a, 248, and 249].

Letter from Sir John Simon (House of Commons) praising his speech [in the House of Commons defending his decision to keep ceremonial dress for the Guards and the Household Cavalry], promising to praise WSC's appliance of science to war when he gets the chance but adding that he (Simon) "must keep banging away until you meet us on present day needs.".

Letter from [Lord Balfour, earlier Arthur Balfour] (Hotel Beau-Site, Cannes, [France]) to WSC reporting that he has written to [Stanley Baldwin] on betting, wishing WSC success with his scheme and stating that the true expenditure on scientific research is under a million pounds.

Telegram from WSC to Commander in Chief, British Army of Occupation [Field Marshal Sir Bernard Montgomery] marked "Top Secret and Personal" stating that no German research and development establishments should be destroyed.

Minute [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on Germany making liquid air explosives. [Copy; given running number 265].

Minute [prepared by F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to First Lord of the Admiralty [A V Alexander, later 1st Lord Alexander of Hillsborough] on measures against aircraft directing U-boats, suggesting setting up radar stations and disturbing communications. [Copy; given running number 256a].

Minutes from "F.A.L." [F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on phosgene gas production and an Air Ministry estimate. [Copies; given running numbers 255 and 255a].

Minute [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on the import shortage, livestock reductions, the move towards the basal diet, non-food imports, and the value of animal proteins. [Copy; given running number 253a].

Minutes [from F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] to WSC on rationing preserves, low flying attacks, searchlights on aircraft, and countering torpedoes. [Copies; given running numbers 249a, 250, 251, and 252].

Minute from "F.A.L." [F A Lindemann, later 1st Lord Cherwell, Prime Minister's Personal Assistant] (Offices of the War Cabinet, Great George Street) to WSC on experiments with searchlights on aircraft. Typescript of annotation by WSC to "C.A.S." [Chief of Air Staff, Air Marshal Sir Charles Portal]: "Pray consider this". [annotated copy; given running number 245].