lo Sept., 191 



Soa/e Rcsitlts i>i Fal/mf/ni^ [.and. 



523 



rain fell on four dates. It was a dry spell, and ga\e no chance to 

 equalize matters. At the final sampling, the cropped plot contained less 

 than half the water present in the worked fallow; the neglected fallow^ was 

 also bad. It had become caked on the surface, and carried a fair cover of 

 weeds, both of which reduced its water content. 



When taking samples at the later dates, it was evident to the eye th;it 

 the worked fallow had much more water than the others. The assistants 

 also noticed it when digging the holes. Th(> worked fallow rould be 



TAKING SAMPLES OF SOIL. 



dug ea.'yily with a spade, while the other plots required a pick to get down 

 to them. 



The Results by Weight. 

 By weighing the earth from a measured hole, it was estimated that 

 I acre of the so 1 to a depth of 18 inches equalled 2,270 tons in the dry 

 condition. Employ'ng this figure, the water percentages at the different 

 dates may be converted into tons. 



Table III. 



At the close of the experiments, the cropped soil contained 264 tons, and 

 the neglected fallow 211 tons less of water per acre in the first 18 inches 

 than the corresponding w^orked fallow. One ton of water to the acre equals 

 almost exactly one point of rain. 



s 2 



