CAMPBELL'S SOIL CULI UKE MANUAL 315 



way that he can immediately apply them to the problems 

 just before him. The farmer is in a better position to profit 

 by and through a correspondence course than any other. 



The extension of the rural route service has brought 

 every farm in the country up next to the city. 



In order to meet the demand for further and more def- 

 inite instruction in the principles of scientific soil culture 

 there is in preparation a complete correspondence course 

 in agriculture having special reference at all times to this 

 branch of the subject. This work is being prepared by H. 

 W. Campbell, and under his personal direction, and as soon 

 as it is ready for use the fact will be made known to the 

 public. Those who take this correspondence course will 

 have many benefits, such as the advantage of personal 

 correspondence with the editor, the results of scientific in- 

 vestigation and personal and practical instruction. 



In this connection a work is now being carried on that 

 is sure to be of the greatest advantage to all persons in- 

 terested at all in the subject. At the time this is written 

 a number of model or experimental farms are in operation 

 in various states of the west. These are farms on which 

 are being carried on the best principles of scientific tillage 

 under the personal direction of Mr. Campbell. The soil 

 has been fitted in accordance with the most approved 

 methods. All the experience of the past 25 years has been 

 drawn upon to make these farms successful. They are in 

 the hands of competent persons. An exact record is being 

 kept, and the results will be carefully computed. The 

 outcome will be the collection of data regarding scientific 

 tillage that will be invaluable to the farmers of the dry 

 country. At the same time a number of other farms are 

 being opened and secured. The sole object in these farms 

 is to carry on this educational work. They are not operated 



