24 
Bulletin 65. 
TABLE IV.—RATES AT WHICH THE SOILS GAVE UP WATER. 
Water 
Water 
Water 
Water 
Water 
Water 
Water 
given up 
given up 
given up 
given up 
given up 
given up 
given up 
in first 24 hrs.. 
in second 24 hrs. 
in third 24 hrs.. 
in fourth 24 hrs 
in fifth 24 hrs .. 
in sixth 24 hrs.. 
Soil A. 
Soil D. 
Feldspar. 
Feldspar, 
Grams. 
Grams. 
Grams. 
Grams. 
. .3.58 
3.10 
2.06 
2.00 
,..2.45 
* 3.00 
2.52 
2.42 
..2.47 
2.45 
1.99 
1.95 
...2.33 
2.40 
1.85 
0.97 
..2.40 
2.40 
0.06 
0.01 
..2.10 
1.60 
• • • • 
• • • • 
3.. 1.20 
0.35 
• • • • 
• • • • 
The experiment with the soils was continued for four days 
longer, but the loss was comparatively slow. The feldspar showed 
no shrinkage. The temperatures at which these experiments were 
made were 15°—16° C. for the soil samples, and 16°-17° for the 
feldspars. 
ANALYSES OF HYDROCHLORIC ACID SOLUTIONS. OF THE SOILS. 
§ 49. The description of these samples has been given in a 
preceding paragraph, and the method of analysis was a conventional 
one, digestion with hydrochloric acid, sp. gr. 1.115, on a water bath 
for five days. 
