ufacture. 
t start of cook. 
ivity. 
Concentration 
NaOH. 
1.09 
6 per cent ' 
2 percent^ (?). 
1.09 
1.08 
1.12 
1.08 
1. 11 
7 per cent 1 
7 per cent 
6-9 percent. 
1.12 
6-8 per cent . . 
5-10 per cent 
1. 11 
L.07 
L.09 
1. 11 
L. 11 
5-7 per cent Naj 
7-9 per cent 1 .. 
5-7 per cent 1 .. 
ring, 45-60 minutes; 
