FORTH-FIFTH WEEKLY SUMMARY. AIR RAID DAMAGE IN THE PERIOD 23RD-30TH JULY, 1941. A. BRIEF ANALYSIS OF MAIN POINTS. (For further details under some of these headings see below). HOMELESS. Numbers increased to 583 in London. WATER SUPPLY. Some damage in East and West Ham on 27/28th July. MAIN DRAINAGE. Two sewers damaged in London. HOUSE PROPERTY. Damage (for the week ending 26th July) negligible. FOOD. No damage to stocks. MINISTRY OF SUPPLY FACTORIES. No damage of importance. RAILWAYS. Slight interference in London as a result of raid of 27/28th July.