Metals §*c. in Fused Substances. 449 



Microcosmic Salt. — Aqueous fusion. Zinc, iron, silver, cop- 

 per — platinum, carbon. 



A mixture of Carbonates of Potash and Soda. — Silicium, iron, 

 zinc, carbon, copper, silver, platinum. Reversals with silver and 

 platinum, silver and copper, copper and carbon. Silicium was 

 strongly positive to iron, and much action and gas at the sur- 

 face of silicium. 



A mixture of Fluorides of Potassium and Sodium. — Silicium, 

 iron, carbon, copper, silver, platinum. Electric currents strong. 

 Silicium rapidly acted upon and dissolved, evolving much gas. 



Carbonate ofLithia. — Iron, carbon, copper, silver, platinum. 

 Reversals with platinum and silver, copper and carbon. Much 

 effervescence. 



Iodide of Barium. — Iron, carbon, silver — copper, platinum. 

 Reversal with copper and silver ; either was positive when moved. 

 Silver freely dissolved. 



Bromide of Barium. — Iron, carbon, copper, silver, platinum. 

 Reversals with silver and copper, iron and copper, iron and 

 carbon. 



Nitrate of Baryta. — Zinc, carbon — copper — silver, iron, plati- 

 num. Reversal with copper and silver. Carbon evolved much 

 gas, which appeared to make it negative to copper, and to silver 

 especially. Iron evolved much gas. 



A mixture of Caustic Baryta and the Fluorides of Potassium 

 and Sodium. Silicium, iron, carbon, copper, silver, platinum. 

 Carbon evolved gas, iron much gas, and silicium very much 

 gas. 



Nitrate of Strontia. — Carbon, platinum, iron. Reversal with 

 iron and platinum. 



Iodide of Calcium. — Aqueous fusion. Silver positive to pla- 

 tinum. 



Bromide of Calcium. — Aqueous fusion. Zinc, copper, iron, 

 platinum. 



Nitrate of Lime. — Silver, copper, platinum, iron, carbon. 



Nitrate of Magnesia. — Aqueous fusion. Zinc, silver, iron, 

 silicium, carbon, platinum. 



Silicate of Potash (soluble glass). — Copper, silver, platinum. 



Bohemian Glass. — Carbon positive to iron, current feeble. 



A mixture of fine white Sand and Hydrate of Potash. Nickel 

 positive to carbon. 



Silico -fluoride of Potassium. — Silicium, iron, carbon, copper, 

 silver, platinum. — Iron and silicium evolved gas. 



A mixture of Soda-lime , white Sand, and Hydrate of Soda. — 

 Carbon strongly positive to nickel. 



Tungstate of Soda. — Aluminium, iron, copper, silicium, car- 

 bon, silver, gold, platinum. Reversal with gold and carbon. 



Phil. Mag. S. 4. Vol. 27. No, 184. June 1864. 2 G 



