32 
BULLETIN 882, U. S. DEPARTMENT OF AGRICULTURE. 
Oiv.-.SU lbs. 
Inches 
.70 
j 
SILICATE OF SODA 
.60 
> 
' 
.50 
/ 
/ 
u 
*2Z 
.40 
// 
/ 
♦30 
2 
// 
; 
Ul 
.20 
Iff 
V 
// 
.10 
/ 
V 
/ 
Ho* 1 = 10J5 

/ 
Nc 
Nc 
. 3 
- 2 
■ 5 
Of, 
10 20 30 40 50 60 70 SO 90 100 lips. 
Fig. 13. — Elasticity curves showing the effect of additions of silicate of soda 
to the caustic bath. Plain-weave cloth made of 3/80's gray yarn spun from 
American Egyptian cotton of grade No. 1 (fancy), 1| inches in length of 
staple. 
twist per inch of single yarn, 33.8. 
Twist per inch of ply yarn, 18.5. 
Construction of cloth, 68 ends by 68 picks. 
Strength of caustic, 64 degrees Twaddle. 
