698 
Journal of Agricultural Research 
Vol. XXVIII, No. 7 
The data for the larger series of determinations on Pima Egyptian and Meade 
and Acala Upland cotton made in 1922 (comparison B, above) and for theser ies 
of determinations made on Pima Egyptian and Lone Star Upland cotton in 
1923 10 (comparison D, above) appear in Table II. For convenience of tabulation 
the chlorid contents may be grouped in classes of 0.25 gm. of Cl per liter range. 
Table II.— Frequency distribution of chlorid content (in terms of grams of Cl 'per 
liter of fluid) in leaf tissue fluids of Egyptian and Upland cotton as grown at 
Sacaton, Ariz., in 1922 and 1923 
Cultures in 1922 
Cultures in 1923 
Grams of chlorid 
(in terms of C-1) 
per liter 
First series, 
July 25 to Aug. 9 
Second series, 
Aug. 28 to Sept. 4 
First series, 
July 29 to 
Aug. 14 
Second 
series, 
Part I, 
Aug. 18 to 
Aug. 31 
Second 
series, 
Part II, 
Aug. 24 to 
Aug. 30 
Class range 
Class 
center 
Pima 
Acala 
Meade 
Pima 
Acala 
Meade 
Pima 
Lone 
star 
Pima 
Lone 
star 
Pima 
Lone 
star 
0.12(H). 375 
0.250 
_ 
1 
0.37(H). 625 
0.500 
1 
2 
0.62(H). 875 
0.750 
18 
15 
1 
0.876-1.125 
1.000 
23 
21 
1 
1.126-1. 375 
1.250 
_ 
24 
16 
2 
1.376-1.625 
1.500 
1 
2 
2 
2 
12 
2 
1. 626-1. 875 
1.750 
3 
7 
1 
2 
1 
1 
1.876-2.125 
2.000 
1 
6 
11 
1 
2.126-2.375 
2.250 
5 
2 
6 
16 
1 
1 
1 
1 
2 
2.376-2.625 
2.500 
10 
12 
10 
9 
1 
2 
1 
2. 626-2. 875 
2.750 
4 
12 
1 
10 
10 
12 
4 
2 
2.876-3.125 
3.000 
5 
7 
11 
7 
6 
10 
3.126-3. 375 
3. 250 
I 
13 
8 
12 
9 
2 
14 . 
2 
1 
3. 376-3.625 
3. 500 
3 
16 
11 
1 
13 
8 
3 
12 
3. 626-3. 875 
3. 750 
5 
11 
2 
2 
7 
3 
1 
9 
2 
3.876-4.125 
4.000 
5 
8 
6 
2_ 
1 
3 
4 
2 
4.126-4. 375 
4.250 
12 
6 
2 
3 
7 
3 
2 
4.376-4.625 
4.500 
5 
3 
3 
9 
5 
_ 
4.626-4. 875 
4.750 
11 
3 
5 
1 
3 
1 
4.876-5.125 
5.000 
8 
1 
Q 
1 
■ 
1 
5.126-5. 375 
5. 250 
3 
8 
5.376-5. 625 
5.500 
4 
1 
1 
12 
5.626-5. 875 
6.750 
4 
7 
.... 
5.876-6.125 
6.000 
2 
5 
. 
1 
6.126-6. 375 
6.250 
4 
2 
6.376-6. 625 
6.500 
1 
2 
. 
6. 626-6.875 
6.750 
3 
_ 
6. 876-7.125 
7.000 
1 
. 
Totals.. 
68 
71 
69 
69 
70 
69 
70 
71 
71 
70 
14 
13 
o The first series of determinations (July 29 to Aug. 14) for the culture of Pima Egyptian Lone Star and 
Upland cotton made in 1923 was drawn from the south half of the plot only. This was done because the few 
plants which developed in the north half were so small at this time that it was evident that two collections 
of leaves could not be made. It seemed desirable to allow them to stand until the second collection of 
samples was made. The second series of determinations (Aug. 18 to Aug. 31) is divided into two parts. 
Part I represents collections from the south half of the plot. It is exactly comparable with the first series. 
Part II comprises the few determinations which it was possible to make (Aug. 24 to Aug. 30) on the scatter¬ 
ing plants in the north half of this plot. They will not be discussed in this place farther than to note that 
the distribution of chlorid content in the two types of cotton is in excellent agreement with that found in 
the main part (Part I) of the experiment. 
