i5 
Nitrogen Fixation 
analysis XI. 
WATER SOLUBLE PORTION OF MEALY SOIL. Orchard No. 2. 
Per Cent. 
Calcic Sulfate . 15.058 
Calcic Carbonate . 1.755 
Calcic Chlorid . 23.158 
Magnesic Chlorid . 25.532 
Potassic Chlorid . 1.667 
Sodic Chlorid . 17.014 
Sodic Nitrate . 15.421 
Iron and Aluminic Oxids . 0.130 
Silicic Acid . 0.2 65 
100.000 
The nitrates constitute approximately 1.301 per cent of the 
air dried mealy soil. 
The next sample was taken from another part of the orchard 
about six months prior to the taking of the two preceding samples 
and shows in an unusual measure the variability in the character 
of the salts present in the soil. The area involved is several acres. 
I suppose that there are 40 acres at least in this piece of land but I 
do not know how much of it is involved in this trouble. I estimate 
the portion that I am familiar with at 10 or 12 acres and very much 
more in adjoining lands. This sample was taken to a depth of one 
foot. Water soluble equalled 6.51 per cent. The ground is entirely 
barren where this sample was taken.. 
ANALYSIS XII. 
WATER SOLUBLE PORTION OF FIRST FOOT OF SOIL. Orchard No. 2. 
Per Cent. 
Calcic Sulfate . 13.072 
Magnesic Sulfate . 4.928 
Sodic Sulfate . 7.691 
Sodic Chlorid . 27.60 9 
Sodic Nitrate . 43.578 
Loss (water, organic matter, etc.) . 3.12 2 
100.000 
The nitrates in this foot of soil amounted to 2.837 per cent 
of its air dried weight. This indicates the presence of 49.5 tons to 
the acre foot. 
This soil is very wet except the surface portion to a depth 
of three or four inches, below this point it becomes muddy; even 
worse if anything than Orchard No. 1. At a depth of about six 
feet water came into the hole that we dug, very slowly. We were 
able to get two gallons of water in about an hour. This water 
contained 2250.01 grains per imperial gallon; the loss on ignition 
was 375.5 grains. 
