I. FIFTY-THIRD WEEKLY SUMMARY. AIR RAID DAMAGE IN THE PERIOD 17TH-24TH SEPTEMBER, 1941. A. BRIEF ANALYSIS OF MAIN POINTS. (Further details under some of these headings will be found below). HOMELESS. No important change. WATER SUPPLY. No damage. MAIN DRAINAGE. No damage. HOUSE PROPERTY. Damage very slight. FOOD. Slight damage at Dover and Margate. MINISTRY OF SUPPLY FACTORIES. No damage of importance. RAILWAYS. No damage. OTHER COMMUNICATIONS. Ports. Harwich closed for a few hours owing to suspected mine-laying.