PLATE 40 



A. — Seedling, 9 days old, grown in clay watered with (i) distilled water, (2) 500 

 parts per million sodium-chlorid solution, (3) 1,000 parts per million sodium-chlorid 

 solution, (4) 1,500 parts per million sodium-chlorid solution, (5) 2,000 parts per million 

 sodium-chlorid solution, (6) 3,000 parts per million sodium-chlorid solution, and 

 (7) 4,000 parts per million sodium-chlorid solution. 



B. — Seedlings, 3 days old, removed from (i) 4,000 parts per million sodium-chlorid 

 solution, (2) sand watered with 4,000 parts per million sodium-chlorid solution, and 

 (3) clay watered with 4,000 parts per million sodium-chlorid solution. 



