1889.] 



PUBLIC DOCUMENT — No. 4. 



623 



One hundred parts of the ash contained (I.) : — 



Mud. 



Soil from a Diked Marsh. 



Per cent. 



Moisture at 100° C, 83.40 



Ash, 7.85 



Calcium oxide, . . . 1.24 



Potassiimi oxide, .26 



Phosphoric acid, .13 



Nitrogen, . . 1.64 



Insoluble matter, 3.65 



