INGREDIENTS OF THE WATER. 191 



these substances (iodides and bromides) may either be 

 deposited more abundantly, or retained in solution in 

 larger proportion than the common salt, and might in 

 consequence, in such large operations, be largely, easily, 

 and profitably extracted. I suggest the examination 

 of this point to my chemical friends in the State of New 

 York especially, as a very likely source of abundant 

 supplies of bromine. 



