The National Geographic Magazine, Volume 64National Geographic Society, 1933 - Geography Indexes kept up to date with supplements. |
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Page 46
... wings which they flap slowly . Frequently they soar with set wings , utilizing air currents rising from the heated surface of the earth , or currents generated by winds . These birds frequently soar for hours with scarcely a wing beat ...
... wings which they flap slowly . Frequently they soar with set wings , utilizing air currents rising from the heated surface of the earth , or currents generated by winds . These birds frequently soar for hours with scarcely a wing beat ...
Page 67
... wings ex- cept to adjust them to the air currents through which it moves to maintain its elevation . Although graceful on the wing , when at rest all attractiveness of appear- ance is lost . With broad wings folded against its rela ...
... wings ex- cept to adjust them to the air currents through which it moves to maintain its elevation . Although graceful on the wing , when at rest all attractiveness of appear- ance is lost . With broad wings folded against its rela ...
Page 88
... wings , to shake the water from its plumage ; then flies to some perch where its meal may be enjoyed . As it rises , it adjusts its grip so that the fish is carried end on , thus affording a minimum . of resistance to the air . FISH ...
... wings , to shake the water from its plumage ; then flies to some perch where its meal may be enjoyed . As it rises , it adjusts its grip so that the fish is carried end on , thus affording a minimum . of resistance to the air . FISH ...
Contents
CubaThe Isle of Romance By ENRIQUE C Canova 345 | 43 |
Eagles Hawks and Vultures 5 ills in color from paintings by MAJ ALLAN BROOKS | 64 |
Ant spider synemosyna formica | 194 |
Copyright | |
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