18 



No. 61. — Glass Shade, containing, 1. Silver Ore, of the kind called 

 Colorado, as taken from the mine. 2. Ditto powdered, previous to 

 amalgamation. 3. Ditto in a state of amalgamation. 4. Silver extracted 

 from the ore by quicksilver, and united with it. 



No. 62. — Imitation of Gold Ore a$ taken out of the river. 



