The list of text-books given below may prove useful to 

 those wanting an elucidation of points which have not been 

 given in sufficient detail, or, to those requiring further informa- 

 tion : 



Botany of Crop Plants ... 



Agricultural Botany 



Breeding Crop Plants ... 



Genetics in Pielation to Agriculture ... 



Fungous Diseases of Plants 



Plant Genetics ... ... 



Soils, Their Preparation ^r Management 



Soils 



Soil Physics and Management 



The Feeding of Crops and Stock 



Principles of Irrigation Practice 



Soil FertilJtv t't Permanent Agriculture 



]\obbins. 



Percival. 



Hays & Gerber. 



Babcock &: Clausen. 



Duggar. 



Coulter. 



Lyon, 



Fippin &: Buckman. 



Hilgard. 



Mosier d' Gustafson. 



Hall. 



Widstoe. 



Hopkins. 



HUBERT D. LEPPAN. 

 G. J. BOSMAN. 



Pretoria, 



March, 1923. 



