SPINXIXG TESTS OF COTTON, 
BREAKING STRENGTH OF YARNS. 
The cotton of each, compression was spun into 16's, 22's, and 28's 
yarn with twists equal to 4.25, 4.50, and 4.75 times the square root 
of the number spun. The average breaking strength of these yarns 
are shown in Table 4. 
Table 4. — Breaking strength in pounds per skein of 120 yards of yarn spun from Cleve- 
land Big Boll cotton, fifteen-sixteenths-inch staple. 
New- 
Draper 
standard. 
Twist mul- 
tiplier. 
Type of bale. 
No. cf yarn. 
Flat. 
Standard. 
High den- 
sity. 
High den- 
sity wet. 
Ifi's 
Pounds. 
f 4. 25 
120 I 4.50 
I 4.75 
! . 
Average.. 
If 4. 25 
87 1 4.50 
4.75 
Average. . 
f 4. 25 
69 \ 4.50 
1 4. 75 
Pounds. 
109.1 
107.0 
106.8 
Pounds. 
101.2 
102.4 
102.6 
Pounds. 
110.3 
107.5 
107.5 
Pounds. 
94.8 
99 
93.5 
107.6 
102.1 
108.4 
93.4 
22's 
73.3 
73.0 
72.7 
70.7 
70.9 
70.6 
74.5 
74.3 
73.1 
64.7 
65 7 
65.0 
73. | 70. 7 
74.0 
65. 1 
2S's 
54.7 ! 53.2 
53.1 52.7 
52. 4 51. 9 
54.5 
54.1 
54.9 
47.3 
48.0 
48.0 
Average.. 
53. 4 52. 6 
54.5 
47.8 
Referring to Table 4 and comparing the breaking strength of the 
yarn spun from the cotton of the different types of bales, it is seen 
that there is practically no difference between the strength of the 
yarns obtained from the flat bale and the high-density bale com- 
pressed under normal conditions. The standard bale produced 
yarns slightly weaker than those produced from either the flat or 
high-density bale compressed under normal conditions, while the 
high-density bale compressed while wet produced yarns about 12 
per cent weaker. 
None of the yarns broke as strong as the new Draper standard. 
This weakness may have been due to the excessive rainfall, which 
delayed the opening of the bolls and the picking of the cotton. 
IRREGULARITY OF YARNS. 
The following figures give the irregularity of the sizings and break- 
ing strengths of the yarns from the different types of bales : 
Sizing Break 
(per cent), (per cent). 
Flat bale 1. 97 3. 72 
Standard or railroad compressed bale 1. 98 4. 30 
High-density bale 2. 17 4. 02 
High-density bale compressed wet 2. 22 4. 18 
These figures indicate that there is practically no difference in the 
irregularity of the sizings or strengths of the yarns from the different 
types of bales. 
