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— FURTHER STUDIES OP THE SOIL — 

 Some further studies were made of the soil in dif- 

 ferent plats. Pore space, specific gravity, and rate of 

 evaporation were determined. It was thought possible that 

 a correllation might he shown between variations in some 

 of these properties and the variations in yield, and that 

 some changes might have occurred as a result of variations 

 in treatment. There were also opportunities for some other 

 observations . 



— PORE SPACE AND SPECIFIC GRAVITY ~ 

 Soil to the depth of 7 inches was taken in cylinders 

 7 inches deep by 6 inches in diameter. The capacity of 

 the cylinders was carefully measvired with water. Two ser- 

 ies were obtained, the first November 20th. just after a 

 thaw and the second November Sist . 



Unless otherxrlse stated the first series was 

 taken at the north end of each plat just beyond where the 

 corn grew, and the second near the middle of the plat. 22a 

 refers to the north end of Plat 22, which was clearly the 

 poorest spot of the field, and 22 refers to the middle of 

 the plat where the soil was gradually changing to the de- 

 cidedly better part of the plat on the south end. No freeze 

 or precipitation occurred between the taking of the samples. 

 Both series were weighed and the moisture was determined from 

 the samples taken on the side of holes fhom which the cylinders 



of soil were taken. 



