67 



(19) Corn, cultivated all season; check. 



(20) Corn^fertilized with acid phosphate; millet sown 

 when corn two feet high. 



(21) Cornjfertilized with acid phosphate; millet sown af- 

 ter corn four feet high. 



(22) Corn ^cultivated all season,' check, 



(23) Corn^ fertilized with potassium sulphate, cultivated 

 all season. 



(24) Cornj fertilized with potassiiam sulphate,' millet sown 

 after corn two feet high, 



(25) Oorn^ cultivated all season,' check, 



(26) Corn, fertilized with potassium sulphate; check; mil- 

 let sown after corn four feet high. 



