74 Power of Soils to Absorb Moisture. 
Marl from the farm of Mr. Crary, Salem, Washington comity. 
100 grains saturated with moisture gave, of 
Water, 52-19 
Dry matter, - ... 47-81 
100 00 
100 grains nearly dry, gave, on analysis, 
Carbonate of lime, 
. 83-22 
Oxide of iron and alumina. 
1-24 
Organic matter, ... 
- 0-51 
Insoluble matter. 
2-42 
Water, 
- 7-25 
Magnesia, ... 
trace. 
*94-64 
Marl from Green Lake, Preble, Cortland county. — 100 grains 
saturated with moisture gave, of 
Water, 39-123 
Dry matter, .... 60-877 
100-000 
100 grains deprived of water and organic matter gave, of 
Carbonate of lime, .... 86-84 
Silica, 11-68 
Peroxide of iron and alumina, - - 0*43 
Magnesia, - ... 0.64 
Potash, soda, and loss, ... 0-41 
Per cent, of organic matter, 3-01. 
100-00 
From the analysis of this marl we cannot account for the small 
per cent of water which it takes up. Thinking we might be mis- 
taken, we tried it a second time. It took up, on the second trial, 
38-74 per cent., which approaches very near the first result. The 
same is the case with the marl in the south end of Christian Hol- 
low, which has the same source, viz: the Tully limestone. 
* Analysis by Prof. Emmons. 
