SPINNING TESTS OF COTTON. 9 
Table 5. — Percentage of waste from Rowden cotton of 1-inch staple; grade, Strict Middling. 
Flat. 
Stand- 
ard. 
High 
density. 
Round. 
PICKER WASTE.* 
Per cent. 
0.95 
.89 
Per cent. 
0.77 
.78 
Per cent. 
0.76 
.92 
Per cent. 
0.68 
.81 
Total visible 
1.84 
.85 
1.55 
.46 
1.6S 
. 77 
1.49 
.14 
2.69 
2.01 
2.45 
1.63 
CARD WASTE. 2 
1.85 
.77 
2.50 
.14 
1.78 
.81 
2.40 
.05 
1.68 
.82 
2.35 
.05 
1.76 
Cylinder and doffer strips 
.79 
2.50 
Sweepings 
.05 
• Total visible 
Invisible 
5.26 
.13 
5.04 
s.58 
4.90 
3.10 
5.10 
3.32 
5.39 
4.46 
4. SO 
4.78 
PICKERS AND CARDS. 1 
6.96 
.98 
6.49 
3.11 
6.46 
.67 
6.51 
3 . 17 
Total visible and inviisble 
7.94 
6.38 
7.13 
6.34 
1 Based upon net weight fed to bale-breaker. 
2 Based upon net weight fed to cards. 
3 Gain. 
Referring to Table 5 and comparing the percentages of waste 
obtained from the different types of bales, it is seen that there is 
practically no difference between the amount of visible waste dis- 
carded, the figures being: 
Per cent. 
Flat bale 6. 96 
Standard or railroad compressed bale 6. 49 
High-density bale . 6. 46 
Round bale 6. 51 
MOISTURE CONDITIONS. 
Table 6 gives the average temperatures and relative humidities 
under which each type of bale was tested. 
Table 6. — Average temperatures and relative humidities during the testing of Rowden 
cotton of 1-inch staple. 
Type of bale. 
Flat. 
Temper- 
ature. 
Relative 
hurrud- 
itv. 
Standard. 
Temper 
ature. 
Relative 
humid- 
ity. 
High density. 
Temper 
ature. 
Relative 
humid- 
it v. 
Round. 
Temper 
ature. 
Relative 
humid- 
itv. 
STAGE. 
When opened 
Finisher picker . . . 
Card 
Drawing frames: 
53 grain sliver. 
73 grain sliver. 
Roving frames: 
4.00 hank fine. 
4.40 hank fine. 
5.60 hank fine. 
7.23 hank fine. 
Spinning frame: 
16's yarn 
22's yarn 
28's yarn 
36'syarn 
F. 
67 
76 
73 
72 
74 
73 
73 
73 
73 
79 
77 
73 
SI 
cent. 
49 
51 
58 
58 
59 
Per cent 
50 
54 
61 
60 
61 
59 
59 
59 
59 
73 
71 
71 
70 
Per cent, 
53 
41 
58 
59 
60 
59 
59 
59 
F. 
70 
74 
74 
75 
74 
73 
73 
73 
73 
SI 
73 
72 
Per cent. 
42 
61 
59 
59 
58 
59 
60 
60 
60 
71 
72 
69 
71 
23243°— 23— Bull. 113.: 
