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Air Raid Siren Test Today In Preparation For Blackout

The wail of an air raid siren will echo from the Yard tomorrow for the second time, as the alarm on top of the Widener Library is given its first official test between noon and 1 o'clock.

The tests in preparation for a black-out planned for Thursday, March 5. It will be even more complete than the recent Boston blackout, since all defense plants will be darkened during the 30 minute period.

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