THE CONQUEST 

 OF THE DESERT 



BY 



WILLIAM MACDONALD 



M.S.AgT., Sc.D., Ph.D., D.Sc. 



Fellow of the Royal Society of Edinburgh and The Geological Society 

 of London; Editor " Agricultural Journal," Union Department 

 of Agriculture, South Africa; Secretary South African 

 Dry-Farming Congress, and Corresponding Secre- 

 tary for the International Dry-Farming 

 Congress 



WITH FIFTY ILLUSTRATIONS 



LONDON 



T. WERNER LAURIE LTD. 



CLIFFORD'S INN 



