78 



A YEAR IN SCIENCE 



Fig. 31 



Copyright by Underwood & Underwood, N. Y. 

 A volcano sending forth steam and sulphurous fumes. 



of labor there. Today Louisiana has outstripped Sicily 

 because of the discovery of new methods of working. 

 Preparation. Although found deposited in immense 

 beds in the free state, sulphur is practically always 

 mixed with various kinds of earthy substances. Before 



