1901-2.] Prof. Alexander Smith on Amorphous Sulphur. 301 
The value of x is unknown. Soluble sulphur has been shown, 
to have the formula S 8 in solution, so that the change seems to be 
in the main an intramolecular rearrangement. 
Other phenomena connected with the relation of amorphous 
sulphur to liquid sulphur, e.g., the speed of the transformation, 
and the proportions existing at various temperatures when equi-. 
librium has been reached, are being investigated. 
( Issued separately August 19 , 1902 .) 
