PLATE 42 



A. — Seedlings, 10 days old, removed from sand watered with (i) distilled water, 

 (2) 1,000 parts per million sodium-chlorid solution, (3) 1,500 parts per million sodium- 

 chlorid solution, (4) 2,000 parts per million sodium-chlorid solution, (5) 3,000 parts per 

 million sodium-chlorid solution, and (6) 4,000 parts per million sodium-chlorid 

 solution. 



B. — Seedlings, 10 days old, removed from clay watered with (i) distilled water, 

 (2) 1,000 parts per million sodium-chlorid solution, (3) 1,500 parts per million sodium- 

 chlorid solution, (4) 2,000 parts per million sodium-chlorid solution, (5) 3,000 parts 

 per million sodium-chlorid solution, and (6) 4,000 parts per million sodium-chlorid 

 solution. 



