42 MINUTE MARVELS OF NATURE 



shrubs and trees. In Fig. 28 and Frontispiece 

 sections of the stems of sycamore and beech show 



Fig. 27. A thin slice of tlie stem of the sarsaparilla plant, showing 

 its structure 



that the structural arrangement of these plants is 

 more symmetrical and that their vascular bundles 



