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LESSONS. PAGE 
Description of a 
Plant ... 109 
XIX. Minute 
Structure ... lill 
Cellular tissue ... 112. 
Elongated taper¬ 
ing Cells ... ib, 
Vascular tissue 113 
XX. Food of Plants 117 
Composition of 
Plants ... ib. 
How plants obtain 
their food 
ib. 
Absorption 
ib. 
Transpiration ... 
119 
XXI. Assimilation, 
Respiration, etc. 
121 
