34 BIG SPRING PRAIRIE. 



EXPERIMENTS WITH SOIL. 



Soil No. ], taken from the bottom of a ditch 6 feet 

 deep near the Johnson celery farm, gave the following 

 results: 



Wet soil, after draining 48 hours 160 oz 



Dry soil, (dried in slow oven) 20 oz 



Loss in weight 140 oz 



Loss % m% 



Volume of wet soil 4 qt 



Volume of dry soil Ifqt 



Loss in volume 21- qt 



Loss % hQ\% 



Volume of dry soil 1 qt. 1 pt. 2 gi. 



Volume of ashes . 3 gi- 



Loss in volume 1 qt. <) pt. 3 gi. 



Loss % 78f % 



Soil No. 2, taken from about 10 inches below sur- 

 face on celery farm. 



Weight of soil, undried 112 oz. 



Weight of soil, dried 26 oz. 



Loss in weight 86 oz 



Loss % 76| % 



Volume of soil, undried 3 qt. 



Volume of soil, dried 1 i qt. 



Loss in volume 1 j qt. 



Loss % 50 % 



Volume of dried soil 12 gi. 



Volume of ashes 3J gi. 



Loss in volume 82 gi. 



Loss % 70| % 



Soil No. 3. Clay subsoil, taken from wooded area 

 near south end of prairie. 



Weight of clay undried 14 lb- 

 Weight of clay dried 11 lb. 



Loss in weight 3 lb. 



Loss % 21f % 



Loss in volume slight. 



