ABSORPTION OF WATER 



53 



FIG. 40. Diagram FIG. 41. Root-hairs from the root of a mus- 



sho wing relation of root- tard seedling, a, In state of turgor; b, be- 



hairs to adjacent cells of ginning of plasmolysis after immersion in weak 



the root, h, the oldest salt-solution; c, later stage of plasmolysis; n, 



of the four hairs shown, nucleus, 

 and furthest from the 

 root-tip. 



FIG. 42. Root-hairs, with soil-particles adhering. (After Sachs.) 



