6 BULLETIN 990, U. S. DEPARTMENT OE AGRICULTURE. 
Table 6. — Average breaking strength in ounces of single strands from 22's yarn. 
{Twist multipliers J^.25, J^MO, and ^J15.) 
Twist multiplier. 
L.M. 
G.M.Y.T. 
M.Y.T. 
L.M.Y.T. 
G.M.Y.S. 
M.Y.S. 
G.M.B.S. 
M.B.S. 
4.25 
Ounces. 
10.4 
10.4 
10.6 
Ounces. 
11.0 
11.1 
11.4 
Ounces. 
11.2 
11.9 
11.2 
Ounces. 
11.1 
11.0 
10.7 
Ounces. 
11.8 
11.1 
11.8 
Ounces. 
11.0 
10.4 
10.5 
Ounces. 
10.0 
10.5 
9.9 
Ounces. 
10.2 
4.50 
10.9 
4.75 
10.7 
MANUFACTURING PROPERTIES. 
On opening the several grades the Middling Yellow Stained and 
Low Middling Yellow Tinged gave off a considerable amount of 
dust. No noticeable feature was encountered in running the other 
grades through the pickers. 
On the cards the Middling Yellow Stained and Low Middling 
Yellow Tinged gave off considerable fly at stripping time. These 
grades were followed in order by Good Middling Yellow Stained, 
Middling Blue Stained, and Middling Yellow Tinged. The re- 
maining grades had the usual amount of fly. During a 10-hour day 
on a commercial basis the cards would have to be stripped four 
times for the Middling Yellow Stained and Low Middling Yellow 
Tinged; three times on the Good Middling Yellow Stained, Mid- 
dling Blue Stained, and Middling Yellow Tinged ; and twice a day 
on the Good Middling Blue Stained, Low Middling, and Good Mid- 
dling Yellow Tinged. 
A large amount of trash and fly collected on the roller beams of 
the roving frames and spinning frame. The largest amount was 
noticed on the Middling Yellow Stained and Low Middling Yellow 
Tinged, followed in order by Good Middling Yellow Stained, Mid- 
dling Blue Stained, Middling Yellow Tinged, Good Middling Blue 
Stained, Low Middling, and Good Middling Yellow Tinged. 
On the spinning frame the only grade that gave any trouble was the 
Good Middling Blue Stained. The other grades would go a full 
doff without more than one or two ends breaking down, whereas 
the Good Middling Blue Stained had about twice as many down 
in the same time. 
The Middling Yellow Stained yarn contained a considerable 
amount of leafy trash. 
BLEACHING PROPERTIES. 
Bleaching and dyeing tests were made in the textile department 
of the North Carolina State College of Agriculture and Engineer- 
ing and under commercial conditions in a bleacherv at Providence, 
R.I. 
The three different twists of 22's yarn made from each grade 
were tested. 
