EXPERIMENT STATION. 6T 



Analysis. 



Insoluble in acid, 1.99 



Oxide of iron and alumina, .87 



Lime, - 45.08 



Carbonic acid, - - 5.95 



Combined water, 12.06 



Water at 100°, 33.19 



Undetermined - - .86 



100.00 



It contains in round numbers 50 per cent, of slaked lime, 13^ 

 per cent, of carbonate of lime, 33 per cent, of watei', and 3^ per 

 cent, of other matters. This sample had dried out somewhat 

 before reaching the Station ; the fresh material is a paste. Two 

 and a half tons of it would not yield more slaked lime than one 

 ton of paper mill lime 911. 



Infusorial Earth. 



870. Sent by Ellis Bagley, Branford, as a "marl." 

 872. Sent by Joseph Sellers, Portland. Taken from the bed 

 of a pond which dried up in the Summer. It forms a layer four 

 to five feet deep under a bed of muck eighteen inches deep. 



Analyses. 870 872 



Silica and sand, 94.70 92.07 



Loss on ignition (organic matter and water), 2.57 4.44 



Oxide of iron and alumina, 2.18) „ .„ 



5- 3.49 



Undetermined, 55 ' 



100.00 100.00 



These samples have no fertilizing value. The silica in them 

 consists in part of the siliceous " skeletons " of a low order of 

 vegetable life, which is aquatic. Such material, when free from 

 sand, is used for fine polishing. 



Ashes of Cottox Seed Huxls. 



To prepare cotton seed for grinding and pressing, it is " decor- 

 ticated" or hulled. The hyjls make up about half the entire 

 weight of the seed. They have no value as food, and at the mills 

 are used for fuel in connection with wood or coal. As the analyses 

 show, the ash of the hulls burned alone or with some wood is very 



