CAMPBELL'S SOIL CULTURE MANUAL 261 



place. I will commence at the beginning. This ground 

 was plowed good probably six inches deep the first part 

 of June, 1903; it was sub-packed and harrowed as soon as 

 the plowing was completed, then after each rain, I think 

 a day after, the ground was harrowed over and the crust 

 that would have formed on the ground when it commenced 

 to dry up was pulverized and made fine. This tract of 

 land was harrowed I think seven times between the time 

 of packing after plowing in June and the time of seeding, 

 which was the 19th, 20th and 21st days of September, and 

 there was nothing more done to this field of wheat until 

 the harvesting commenced. The cost of the work, and 

 it was all hired done, including the purchase of the seed 

 wheat, was $3.25 per acre; this wheat made a fairly good 

 growth last fall and as soon as the warm days commenced 

 to come this spring this wheat began to grow and you re- 

 member how it looked the night we walked over it, and 

 this was long before we had our first spring rain. It kept 

 on growing until it was a good height and completely cov- 

 ered the ground before we had our first rain, looking all 

 the time as fresh as a rose. The people were watching 

 this wheat field, and as no other wheat in the country was 

 growing at all, they concluded one evening they would fix 

 up a test auger and go over there and test the depth of 

 moisture in the ground. They found it upon their in- 

 vestigation nice and moist five feet down, and of course 

 this is the sequel of the whole matter. All of this moisture 

 fell on the ground last summer after the plowing was done 

 and retained there by this system of harrowing the ground 

 after each rain, keeping the ground fine and loose on top. 

 11 We find by the Campbell System that we can as well 

 keep the moisture in the ground as to put it in a jug and 

 put in a cork. This wheat field has been looked at by 



