AMPBELL'S SOIL CULTURE MANUAL 225 



do in prolonged dry periods. Some very marked results 

 have been accomplished by this method, while the tonnage 

 is not quite equal to that from scientific irrigation, yet the 

 yields of sugar is much better. The growing of sugar 

 beets without irrigation in sections where the sugar beets 

 can be easily marketed, will, in the near future, be very 

 commonly practised. 



The Pomeroy farm certainly proves the truth of Mr. 

 Campbell's theories, or else he is a wizard. Wm. E. Curtis. 



Your great work in soil culture is thoroughly appreciated 

 by every thinking citizen of Nebraska. The late J. Sterling 

 Morton. 



The Campbell system is a glorious success. It is not a 

 mere wet season humbug, destined to collapse with the 

 next series of dry years. I have doubted, watched, investi- 

 gated constantly for nine months, and have become con- 

 vinced that it is the greatest agricultural discovery of re- 

 cent history. John E. Leet, in Denver Republican. 



