6 



In some of the pots the seed germinated but the plants soon 

 turned brown and died. All pots in which plants died at first 

 planting were replanted and in several instances the seeds ger- 



Fig. 1 — Cowpeas — Soil Xo. 3 

 From left to right, Pots Xo. 8, 1, 2, 4. 



Fig. 2 — Buckwheat — Soil ]STo. 1 

 From left to right, Pots Xo. 8, 1, 2, 3, 4, 5. 



minated at second planting and though much stunted in growth 

 reached maturity. 



These plants indicate strongly that the effect of sodium arsen- 



