Fig. 18. A, parenchymatous cell, highly magnified: at the exterior 

 is the cell-wall (shaded) which encysts the body : the latter is 

 composed of a protoplasmic lining which surrounds the large 

 watery vacuole, while in the centre the nucleus is suspended by 

 bridles of protoplasm. The arrows indicate the movements of 

 the protoplasm during life. 7) shows a portion of the cell-wall 

 and protoplasmic lining more highly magnified. (From Vines' 

 Lectures on Physiology of Plants, after Hanstein.) 



