CONCLUSIONS. 23 



3. The vegetation around the smelter for at least 3 miles north, 9 

 miles south, 2^ miles east, and 5 to 6 miles west has been greatly 

 injured. 



4. The water of the Sacramento River is polluted by the waste 

 material from the smelter. 



5. It is the opinion of the author that this injury to vegetation will 

 continue and even increase its limits unless the fumes are condensed. 



0. The fumes can be condensed and sulphuric acid formed, fo 

 which a ready market would probably be found. 



o 



