12 
the flame be extinguished by the effect of the gas, the whole process 
would necessarily have to be gone over. If the sulphur is divided 
among a considerable number of smaller containers the greater part of 
this danger is obviated and, there being more sources of supply, the 
uncertainty which always surrounds the practical diffusion of gases is 
neutralized. 
It is therefore recommended that the combustion of sulphur should 
be effected in such a manner that no vessel used for the combustion 
should contain more than 30 to 40 pounds of the sulphur. This sulphur, 
too, should be in a state of flne division, and ignition should be obtained 
by using a liberal quantity of alcohol to start the Are in each pot. 
C 
