The New Encyclopaedia Britannica, Volume 23Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 247
... plant fossil types and detail 7 : 574c preservation in shales 16 : 637e fossil plants , remains of vegetation_pre- served in the rocks and sediments of the Earth . The study of fossil plants is known as paleobotany . The oldest known ...
... plant fossil types and detail 7 : 574c preservation in shales 16 : 637e fossil plants , remains of vegetation_pre- served in the rocks and sediments of the Earth . The study of fossil plants is known as paleobotany . The oldest known ...
Page 529
... plant . They also promote the growth of dwarf peas and are in- volved in the bolting ( elongation ) of rosette plants ( e.g. , the carrot ) after such plants have been exposed to certain environmental stimuli ( e.g. , cold or long ...
... plant . They also promote the growth of dwarf peas and are in- volved in the bolting ( elongation ) of rosette plants ( e.g. , the carrot ) after such plants have been exposed to certain environmental stimuli ( e.g. , cold or long ...
Page 865
... plant is a mass of these showy flowerlike seeds . The high content of oxalate ( the dried plants have 5-25 percent of the salt ) makes haloge- ton poisonous to sheep and cattle . The lethal dose for a sheep is two - thirds of a pound of ...
... plant is a mass of these showy flowerlike seeds . The high content of oxalate ( the dried plants have 5-25 percent of the salt ) makes haloge- ton poisonous to sheep and cattle . The lethal dose for a sheep is two - thirds of a pound of ...
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