2. 1. (a) (b) (c) 3. 4. 5. 6. 7. 8. 49 ENCLOSURE. of subjects proposed by the Industrial List Intelligence Centre for investigation. Results of air attack on oil storage depots and refineries. Results of air attack on and defence of Shipping Ports Naval and military supply bases (including munitions). Low flying attacks on land forces and civil populations. Effects of bombing on urban buildings; particulars concerning measures taken to protect civil populations, and their effectiveness; casualties; use of gas.