700 
Journal of Agricultural Research 
Vol. XXVIII, NO. 7 
The comparison between the Pima Egyptian and Meade Upland cotton as 
grown in a second series of cultures in 1922 (comparison C, above) appears in 
Table IV. Because of the higher chlorid content and the greater variability 19 
of chlorid content in this experiment the tabulation has been made in units of 
0.35 gm. per liter range. 
In this arrangement of the data the chlorid content of Upland cultures asso¬ 
ciated with Pima plants of any chlorid content are seen to be to some extent 
variable. It will also be noted that there is a tendency for the chlorid content 
of Upland plants to shift upwards in passing from the lower to the higher classes 
of chlorid content in the Egyptian (Pima) cotton. 
Table IV.— Comparison between the chlorid contents of Pima Egyptian and Meade 
Upland cotton as grown at Sacaton f Ariz., 1922 
Chlorid in Pima 
i 2 Possibly the greater variability of chlorid content in this experiment is due to the facts (a) that the 
chlorid content is on the average higher in this culture, and that (6) the analyses are based on samples of 
tissue collected from individual plants instead of a considerable number of plants. 
