PLATE 41 



A. — Seedlings grown in sand and in the following solutions filtered through sand: 

 (i) distilled water, (2) 1,000 parts per million of sodium chlorid, (3) 1,500 parts per 

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

 per million of sodium chlorid, and (6) 4,000 parts per million of sodium chlorid. 



B. — Seedlings grown in clay and in the following solutions filtered through clay: 

 (i) distilled water, (2) 1,000 parts per million of sodium chlorid, (3) 1,500 parts per 

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

 per million of sodium chlorid, and (6) 4,000 parts per million of sodium chlorid. 



