London, Feb. 24. JOULOGNE and Calais were singled out for heavy air raids by the Royal Air Force last night when bombers soared over the French coast for many hours, dropping various types of bombs, the Air Ministry announced toda:
The attack on Boulogne was the 74th raid on the German, invasion base thus far and was believed to have been even heavier than the continuous bombing of Calais, which was attacked for the 61st time since the start of the war, Both attacks were reported to have been highly successful.
The attacks started about 8 p.m.
Through the sea haze, observers on the British side of the Channel saw big flashes in the sky, indicating that the RAF. had dropped the: heaviest calibre bombs.
The planes attacked the Boulogne district first, then moved up the coast to Calais, where shortly afore 10 pam, three exceptionally vivid flashes "possibly as a result of dumps being Press, hnit—were seen by observers—United
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