1 84 Cutting Knife, six (Indian), made of transparent 



rock crystal. Wind River, Arizona. 



185 Quartz Arrow-heads, four, of transparent rock 



crystal (Indian). Iredell County, North 

 Carolina. 



186 Quartz, Arrow-head of hyaline (Indian). Iredell 



County, North Carolina. 



187 Rose Quartz, four specimens. Albany, Oxford 



County, Maine. 



188 Rose Quartz, four spheres, one two inches in 



diameter. Albany, Oxford County, Maine. 



189 Rose Quartz, five cut stones. Albany, Oxford 



County, Maine. 



190 Rose Quartz, dish, if x f inches, spheres. 



191 Faceted stones, ovals, etc. 



192 Quartz, green, fifteen small groups. Blue Hill, 



Delaware County, Pennsylvania. 



193 Fire Opal, small specimen, f x J inch. John 



Davis River, Crook County, Oregon. First 

 occurrence in the United States of opal 

 showing a play of color. 



194 Opal, milk-white. Ouray County, Colorado. 



195 Hydrophane, "magic stone," absorbs almost its 



own weight of water, and becomes trans- 

 parent. Colorado. 



196 Wood Opal, three cut stones. Three Forks, Gal- 



latin County, Montana. 



19 Wood Opal. Middle Park, Colorado. 



198 Milky Opal, three, with moss-like markings 



(dendrites). South Park, Colorado. 



199 Opal Agate, one polished specimen. Queretaro, 



Mexico. 



19 



