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 haven't time to get down there, lie down along an inside wall, or duck under a bed or table. But don't pick a spot right opposite the windows or you are almost sure to be pelted with shattered glass.

If caught out-of-doors, either drop down alongside the base of a good substantial building—avoid flimsy, wooden ones likely to be blown over on top of you—or else jump in any handy ditch or gutter.

When you fall flat to protect yourself from a bombing, don't look up to see what is coming. Even during the daylight hours, the flash from a bursting A-bomb can cause several moments of blindness, if you're facing that way.

To prevent it, bury your face in your arms and hold it there for 10 or 12 seconds after the explosion. That will also help to keep flying glass and other things out of your eyes.

Flash burns from the A-bomb's light and heat caused about 30 percent of the injuries at Hiroshima and Nagasaki. Near the center of the burst the burns are often fatal. People may be seriously burned more than a mile away, while the heat can

be felt on the bare face and hands at 4 or 5 miles.

To prevent flash burns, try to find a shelter where there is a wall, a high bank or some other object between you and the bursting bomb. You can expect that the bomber will aim for the city's biggest collection of industrial buildings.

A little bit of solid material will provide flash Rh