1 56 Quartz Crystals (three) groups. Crystal Mount- 



ain, Arkansas. 



157 Quartz, rock crystal, rolled pebble, found in 



Washita River, Arkansas. 



158 Amethyst, deep purple, cut stone, 34 i| carats. 



Deer Hill, Stow, Maine. 



159 Amethyst, cut stone, 15-^f carats. Deer Hill, 



Stow, Maine. 



160 Amethyst, purple, group of crystals. Thunder 



Bay, Lake Superior. 



161 Amethyst, group of two crystals, deep purple, 



with brilliant faces. Upper Providence, 

 Delaware County, Pennsylvania. 



162 Amethyst, group of three large crystals, deep 



purple, 5^ x 5 X4 inches, the finest one 

 from this locality. Upper Providence Town- 

 ship, Delaware County, Pennsylvania. 



163 Amethyst, small crystal, purple. Upper Provi- 



dence, Delaware County, Pennsylvania. 



164 Amethyst, cut stone, ^ dwt. Upper Providence, 



Delaware County, Pennsylvania. 



165 Amethyst, group of crystals. Delaware County, 



Pennsylvania. 



166 Amethyst, cut stone, deep purple, 66)4 carats. 



McDowell County, North Carolina. 



167 Amethyst, cut stone, 5^ carats. Upper Provi- 



dence, Delaware County, Pennsylvania. 



168 Amethyst, light purple crystal. Haywood County, 



North Carolina. 



1 69 Amethyst, group of crystals, deep purple. Guana- 



juato, Mexico. 



17 



