494 



PROCEEDINGS OF THE AMERICAN ACADEMY 



Fig. 1. Ba 0. 



Fig. 2. BaO. 



Fig. 3. Sr 0. 



Fig. 4. Mg 0. 



Fig. 5. W Oj. 



Fig. 6. MoO,. 



Explanation of the Figures. 



Fig. 1. 

 " 2. 

 " 3. 

 " 4. 

 " 5. 

 " 6. 



Baryta in microcosmic salt (obtained without flaming). 



Baijta in borax. 



Strontia in microcosmic salt. 



Magnesia in borax. 



Tungstic Acid in borax. 



Molybdic Acid in borax. 



