The National Geographic Magazine, Volume 108National Geographic Society, 1955 - Geography Indexes kept up to date with supplements. |
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Page 672
... leaves to do its work on earth . Each Leaf an Efficient Laboratory Leaves are , in effect , the lungs of a tree , though their manner of breathing is peculiar to the plant world . The underside of each leaf is pitted with thousands of ...
... leaves to do its work on earth . Each Leaf an Efficient Laboratory Leaves are , in effect , the lungs of a tree , though their manner of breathing is peculiar to the plant world . The underside of each leaf is pitted with thousands of ...
Page 673
... leaves to branches , trunk , and roots . The growth and work of a TREE Leaves produce sugar by photosynthesis , oxygen being a by - product . Millions of microscopic chemical laboratories ( chloroplasts ) trap radiant energy from the ...
... leaves to branches , trunk , and roots . The growth and work of a TREE Leaves produce sugar by photosynthesis , oxygen being a by - product . Millions of microscopic chemical laboratories ( chloroplasts ) trap radiant energy from the ...
Page 689
... leaves are aromatic . They measure 3 to 6 inches and have dark - green , glossy surfaces and paler veined undersides . Rounded leafstalks distinguish the species from related aspens . Drooping flowers precede the leaves . Balsam ...
... leaves are aromatic . They measure 3 to 6 inches and have dark - green , glossy surfaces and paler veined undersides . Rounded leafstalks distinguish the species from related aspens . Drooping flowers precede the leaves . Balsam ...
Contents
Iceland to Antarctica A National Geographic Cartographer Goes | vi |
The Incredible Kangaroo Australias Famous Marsupial Sits on Its Tail | xxv |
Utahs River of Arches A Pack Trip Through Littleknown Canyons | xxx |
Copyright | |
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