The National Geographic Magazine, Volume 74National Geographic Society, 1939 - Geography Indexes kept up to date with supplements. |
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Page 466
... eggs , and then to release them from the sand . The tides accompanying the new moon , when the eggs are ready to hatch , are higher than the usual tides , as are those ac- companying the full moon . The surf smelt , or silver smelt ...
... eggs , and then to release them from the sand . The tides accompanying the new moon , when the eggs are ready to hatch , are higher than the usual tides , as are those ac- companying the full moon . The surf smelt , or silver smelt ...
Page 469
... eggs are not like the typical spherical fish egg but are about twice as long as they are wide . Colorless , and almost completely trans- parent in the sea water , they float at the mercy of the wind and tidal currents . Yellowtail ...
... eggs are not like the typical spherical fish egg but are about twice as long as they are wide . Colorless , and almost completely trans- parent in the sea water , they float at the mercy of the wind and tidal currents . Yellowtail ...
Page 826
... eggs , and they were all males . So it was safe to assume that the unfertilized eggs of this wasp pro- duced males only . Among yellow jackets , parthenogenesis takes place only in the event of the acci- dental death of the queen ...
... eggs , and they were all males . So it was safe to assume that the unfertilized eggs of this wasp pro- duced males only . Among yellow jackets , parthenogenesis takes place only in the event of the acci- dental death of the queen ...
Contents
GuamPerch of the China Clippers By Margaret M HIGGINS | 99 |
A Motor Caravan Rolls Across Sahara and Jungle Through Realms | 327 |
Boyhood Recollections and Recent Observations by An American | 419 |
Copyright | |
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