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Image 7-1
wider spot 8-10 feet
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Image 7-2
Light beam from above
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Image 7-3
Typical narrow area
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Image 7-4
Note irregular sides
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Image 7-5
Note Narrow spots
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Image 7-6
Shaft of sunlight reflects on dust
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Image 7-7
Note flat sand floor
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Image 7-8
A large light shaft
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Image 7-9
Look at the long straight slot here
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Image 7-10
Note sand stone pattern
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Image 7-11
Wide irregular sidewalls
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Image 7-12
Near entrance
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