306  Pharmacy  and  Chemistry.  {^jS^iS?™* 
something  distinctly  pharmaceutical  wherever  we  may  turn.  This 
being  the  case,  the  writer  thought  it  might  be  of  interest  to  note 
those  exhibits  that  are  of  more  than  passing  interest  to  the  profes- 
sion, and  state  where  they  may  be  found. 
Entering  the  Mines  and  Metallurgy  Building,  the  mineral  wealth 
upon  which  the  manufacturer  of  our  chemicals  draws  is  shown. 
Many  exhibits  strikingly  show  the  great  resources  of  the  several 
States  in  certain  lines.  Pennsylvania  has  a  colliery  in  miniature 
working  full  blast.  Alabama's  celebrated  iron  is  shown  in  a  colos- 
sal statue  of  Vulcan,  whose  head  touches  the  roof.  Colorado  has  a 
small  nugget  of  silver  that  the  Vulcan  might  use  as  a  watch 
charm,  and  Irom  which  a  paltry  $6,000  in  silver  coin  could  be 
made.  Minnesota  constructed  a  large  geological  model  of  its  iron 
ore  beds,  together  with  the  method  of  shipping  the  mined  ore  on 
the  iron  steamers. 
While  a  great  many  of  the  exhibiting  States  show  a  certain 
sameness  in  their  exhibits,  such  as  large  blocks  of  coal,  minerals, 
building  stones  and  oil,  others  have  bestowed  much  care  on  the 
arranging  and  collecting  of  their  mineral  wealth,  and  of  these 
Colorado  undoubtedly  leads. 
Colorado  shows  a  large  circular  case  filled  with  native  gold  in  the 
various  forms  as  found  in  this  State ;  also  several  cases  of  native 
silver.  Especially  striking  are  the  cases  of  finely  crystallized  ores, 
gems  and  minerals  found  associated  with  the  ores  in  the  gangue. 
Two  cases  of  uranium  ores  from  Montrose  County,  one  filled  with 
select  specimens  of  pitchblende  and  the  second  with  carnotite,  in 
which  radio-active  substances  have  been  found.  Rich  telluride  ores 
have  been  sawed  in  two — one  part  subjected  to  roasting,  the  other 
not.  From  the  roasted  ore,  gold  in  form  of  drops  seems  to  have 
exuded  from  every  pore,  while  the  ore  proper  appears  grayish  to 
bluish  black  and  gives  no  evidence  of  the  riches  hidden  therein. 
On  the  shores  of  the  Great  Salt  Lake  large  quantities  of  salt  are 
produced  by  solar  evaporation,  and  some  beautiful  strings  of  large 
cubical  salt  crystals  are  seen  in  Utah's  collection.  Gypsum  usually 
occurs  associated  with  salt,  and  some  giant  crystals,  3  feet  in  height, 
probably  the  largest  ever  unearthed,  are  exhibited  by  Utah,  together 
with  some  of  the  celebrated  Richardson  radium  ores. 
Near  Tiffany's  gem  exhibit,  in  which  is  the  remarkable  violet- 
colored  gem  kunzite,  that  glows  so  strongly  when  exposed  to  radium 
