3} Iridosmine, grains. Trinity River, California. 



34 Sperrylite, minute crystals (arsenide of platinum). 



Sudbury, Ontario, Canada. 



35 Silver, sheet of fine white crystals, 3 x \ x / 2 x 1 



inches. Ontonagon District, Michigan. 



}6 Silver, sheet of crystals with calcite, 2x1^ inches. 

 Minnesota Mine, near Rockland, N. S. 



37 Silver and Copper, group of crystals on copper, 



3x2x2 inches. Houghton, Michigan. 



38 Silver, brilliant slab, intermixed with copper, cut 



and polished, 4^x3x1 inches. National 

 Mine, Ontonagon District, L. S. 



39 Silver (Native), spray of crystals on, 4x1^ 



inches. National Mine, Ontonagon District, 

 Michigan. 



40 I Ruby, weight f£ carat. Jenks' Mine, Franklin, 



Macon County, North Carolina. One of 

 the finest of the few found at this locality. 



41 Ruby, 1 ye carat, Franklin, Macon County, North 



Carolina. 



42 Ruby, rich red crystal, f x ^, on matrix, }}4 x 3. 



Vernon, Sussex County, New Jersey. 



43 Ruby Corundum, two stones, cut en cabochon. 



Cullakenee Mine, Clay County, North Caro- 

 lina. 



44 Ruby Corundum. West's Mills, Iredell County, 



North Carolina. 



45 Ruby Corundum, cleavable, rich red, part of a 



crystal, from near Atlanta, Georgia. 



46 Ruby Corundum, vein of cleavable, red in smarag- 



dite. Buck Creek, Clay County, North 

 Carolina. 



