COMPARATIVE SPINNING TESTS OF COTTON. 
Table 2. — Percentages of waste from the different varieties of cotton. 
Acala. 
Lone 
Star. 
Mexican 
Big Boll. 
Rowden. 
Typical 
North 
Georgia. 
Mid. 
1* 
Per cent. 
1.31 
1.44 
S.M. 
Per cent. 
1.26 
1.11 
G.M. 
lfull.... 
Per cent. 
.86 
.91 
G.M. 
iiV 
Per cent. 
.86 
.SO 
S. M. 
Its 
Picker waste: a 
Per cent. 
.74 
.85 
Total visible. \ 
2.75 
.68 
2.37 
.54 
1.77 
1.03 
1.66 
1.21 
1. 59 
1.03 
3.43 
2.91 
2.80 
2. 87 
2.62 
Card waste: & 
2.70 
1.02 
1.96 
.05 
2.58 
.98 
1.65 
.11 
2.51 
1.00 
1.47 
.10 
2.32 
.73 
1.32 
.07 
2.30 
.86 
1.60 
Sweepings 
.07 
Total visible 
Invisible 
5.73 
.83 
5.32 
.12 
5.08 
.29 
4.44 
.83 
4. s.3 
. 47 
Total visible and invisible 
6.56 
5.44 
5.37 
5.27 
5.30 
Pickers and cards: a 
8.28 
1.48 
7.54 
.65 
6.71 
1.31 
5.97 
2.02 
6. 29 
1.49 
9*. 76 
8.19 
8.02 
7.99 
7.7^ 
Based en net weight fed to bale-breaker. 
Based on net weight fed to carrL- 
Table 2 shows that the percentages of total visible waste discarded 
by the different varieties of cotton, closely followed the grade when 
comparing the pure strains of cotton. 
MOISTURE CONDITIONS. 
The different varieties were run under as nearly identical moisture 
conditions as possible. Outside weather conditions caused higher 
relative humidities in the picker and card rooms than were desired. 
A relative humidity of 50 per cent was desired in the picker room, 
60 per cent in the card room, and 70 per cent in the spinning room. 
Actual conditions which prevailed while the cotton was being ma- 
chined are shown in Table 3. These averages were obtained from 
readings of self-recording hygrometers equipped with electric fans. 
Table 3. — Average temperatures and relative humidities during tests. 
Process. 
Acala. 
Lone Star. 
Mexican Pn „j „ 
Big Boll. Rowden. 
Typical 
North Georgia. 
Temp. 
Rel. 
hum. 
Temp. 
Rel. 
hum. 
Temp. 
Rel. 
hum. 
Temp. 
Rel. 
hum. 
Tem P- ; hum. 
When opened 77 
Finisher picker 79 
Cards 77 
Drawing frames ! 77 
Roving frames 7S 
Spinning frame S4 
1 
Per 
cent. 
78 
71 
61 
60 
66 
71 
76 
77 
81 
82 
S3 
85 
Per 
cent. 
67 
73 
65 
62 
64 
71 
85 
84 
83 
83 
80 
86 
Per 
cent. 
67 
65 
62 
62 
61 
70 
°F. 
83 
79 
84 
84 
83 
S6 
Per 
cent. 
70 
69 
64 
65 
62 
70 
i Per 
°F. cent. 
80 71 
82 69 
84 H2 
^4 62 
64 
86 70 
Samples for moisture tests w T ere obtained at different periods 
during the day from the different manufacturing processes. The 
averages of these moisture tests are showm in Table 4. 
