CAMPBELL'S SOIL CULTURE MANUAL 299 



the Campbell methods, I am led to the conclusion that 

 some more effective plan of getting your Manual of soil 

 culture into the hands of the people should be devised. I 

 have frequently said that your Manual is worth its weight 

 in gold to any man who tills the soil whether he farms 

 wthout irrigation or with it. No reasonable consideration 

 could induce me to part with the knowledge I have gained 

 from your writing, if such a thing was possible, for by 

 following in the way you have indicated I have caused 

 land costing $3.00 an acre to yield a net income of $18.00 

 an acre in one year and aside from the question of a mone- 

 tary consideration, it has lifted farm labor from mere 

 drudgery to the field of scientific pursuit." 



GREAT DISCOVERY. 



John E. Leet, after years of careful study of the sub- 

 ject, wrote in the Denver Republican: 



"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, inves- 

 tigated constantly, for nine months, and have become abso- 

 lutely convinced that it is the greatest agricultural discov- 

 ery of recent history. It will rapidly settle the fertile, 

 sunny, beautiful healthful rolling plains of eastern Colorado 

 and western Kansas with a dense and thrifty population." 



WEALTH INCREASED. 



L. J. Clinton, director of the Agricultural experiment 

 station at Storrs, Conn., writing January 21, 1907, in regard 

 to the Manual, said: 



"I know something of the work you have done in re- 

 claiming what was known formerly as 'the great American 

 desert/ and I believe as a result of your instruction in soil 



