36 



CAPILLARITY 



The writer under Professor Pippin's direction deter- 

 mined the capillary rU-e of water in four air &ry soils of 

 different textures. Soil 1 was secured by separating a 

 coarae, sandy soil with a half ra.m. sieve, that which failed 

 to pass through being retained. Soil 2 w&a secured from 

 that which was eliminated in securing Soil 1, and which 

 failed to pass throu.^h a tenth w.m. sieve. Soil 3 was a 

 silt loam, and was not passed through a sieve. Roil 4 was 

 a caked clay loana, which wee broken down with a r^ler and. 

 passed through a half m.ia, sieve. Glass cylinders 40 cm. 

 internal diameter wer« prepared by firmly tym^ a dam of 

 folded ch«eseclotatt over one end. The soil was carefully 

 placed in the tubes, avoiding the formation of air spaces. 

 The cylinders were set in pans in which wiiit*?r was maintained 

 at a depth of about two inches. The results s>n Table XV 

 refer to rise above the water level. 



Table XV : Capillary Rise in Soils of Different 

 Texture: - in Inches. 



