1912. 



PUBLIC DOCUMENT — No. 31. 



215 



solids when compared with the corresponding figures for the 

 unfiltered water. 



Table IV.- — Average Composition of Bog Waters, May 10-12, 1011. 



Organic Solids. 



Inorganic Solids. 



Unfiltered, 

 Filtered, 



63.0 



38.8 



48.0 

 34.0 



The hehavior of the samples in filtering, their opaque appear- 

 ance before it, and the lower solids compared with the results of 

 the previous season, point toward a saturation of the water in 

 the bogs by the soluble material in the soil. 



On June 2 chemical fertilizers were added to 22 of the 30 

 bogs, and the bogs were renumbered in pairs; lA, IB to 15 A, 

 15B, and each cylinder of a pair was a duplicate of the other. 



Table V. — Scheme for Fertilizers on Bogs, 1911. 



Boa NU.MBER. 



Nitrate 



Soda 

 (Grams). 



Acid 

 Phosphate 

 (Grams). 



Sulfate 

 Potash 

 (Grams). 



Calcium 

 Hydrate 



(Grams). 



lA, IB, 

 2A, 23, 

 3A, 3B, 

 4A, 4B, 

 5A, 5B, 

 6A, 6B, 

 7A, 7B, 

 8A, 8B, 

 9A, 9B, 

 lOA, lOB, 

 UA, IIB, 

 12A, 123, 

 13A, 133, 

 14 A, 143, 

 15A, 15B, 



3 25 

 3.25 



3.25 

 6.50 



3.25 

 3.25 



3.25 



6.5 



6.5 

 6 5 



6.5 



6 5 

 13.0 



6.5 



65 



Note. — Area of bogs, 1A4.000 of an acre. 



After the fertilizers were added all irrigation of the bogs 

 was executed by adding water to the drainage cylinders instead 



