The National Geographic Magazine, Volume 115National Geographic Society, 1959 - Geography Indexes kept up to date with supplements. |
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Page 113
... light on the back wall , which curved abruptly down to the toe of the cenote . At the foot of the rocky columns we came to another landing , and then the bottom dipped again , flattened , and slid into a low - arched black tunnel ...
... light on the back wall , which curved abruptly down to the toe of the cenote . At the foot of the rocky columns we came to another landing , and then the bottom dipped again , flattened , and slid into a low - arched black tunnel ...
Page 675
... light area would show the same fiery colors had not excess light overexposed the film . This vast and magnificent cloud of glowing gas appears to the naked eye as the middle star in the sword of Orion , one of the most conspicuous con ...
... light area would show the same fiery colors had not excess light overexposed the film . This vast and magnificent cloud of glowing gas appears to the naked eye as the middle star in the sword of Orion , one of the most conspicuous con ...
Page 679
... light the eye loses its abil- ity to perceive color . Even in the Great Nebula of Orion ( page 675 ) , by far the ... light , photographic film works less efficiently than in bright light , and in color film the red- and green ...
... light the eye loses its abil- ity to perceive color . Even in the Great Nebula of Orion ( page 675 ) , by far the ... light , photographic film works less efficiently than in bright light , and in color film the red- and green ...
Contents
VOLUME CXV | 155 |
TenColor Map Lands of the Eastern MediterraneanNIA | iii |
PUBLISHED BY | i |
Copyright | |
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