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Word: sirenes (lookup in dictionary) (lookup stats)
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Listeners in Central Square and even in Fen way in Boston reported that they had heard the alarm system. Company officials also were pleased by the way in which the unusual tone of the siren was noticed; for one of their big problems, besides devising a frequency that would be heard above the sounds of traffic, was to make the tone different from any other siren or fog horn...

Author: NO WRITER ATTRIBUTED | Title: Authorities Say Air Alarm Test "Highly Satisfactory" | 1/23/1942 | See Source »

...reply to the statement of a Boston paper that merchants in the Square had not even heard the alarm, the Eastern Company said that the purpose of the siren was to get people off of the streets, not bring them out. The Eastern Company is supplying the City of Cambridge with the apparatus...

Author: NO WRITER ATTRIBUTED | Title: Authorities Say Air Alarm Test "Highly Satisfactory" | 1/23/1942 | See Source »

Cries of "Buy Defense Bonds," or "modern design makes the big difference," will resound through the Yard this afternoon between 12:15 and 1:30 o'clock when the Civilian Defense Committee of Cambridge will try out its Dilk air raid siren on top of Widener Library...

Author: NO WRITER ATTRIBUTED | Title: Air Raid Test Will Shatter University's Calm at Noon | 1/21/1942 | See Source »

...product of the RCA research laboratories, the siren, which reputedly possesses an audible range of three miles, has been tested in various parts of Cambridge to find a location where it can be heard in all parts of the city...

Author: NO WRITER ATTRIBUTED | Title: Air Raid Test Will Shatter University's Calm at Noon | 1/21/1942 | See Source »

...What to do when the siren blows: Blow back...

Author: /time Magazine | Title: Army & Navy And Civilian Defense: San Francisco's Nerve Center | 1/19/1942 | See Source »

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