Aroc"tober,Pi9oai!m'}    Deterioration  of  Artificial  Foods.  477 
cormis,  colchici  semen,  colocynthus,  cubeba,  digitalis,  eupatorium, 
gentiana,  grindelia,  hydrastis,  lappa,  leptandra,  linum,  lobelia,  mar- 
rubium,  mentha  piperita,  mentha  viridis,  mezereum,  myristica,  nux 
vomica,  pareira,  physostigma,  piper,  podophyllum,  rhus  glabra, 
rosa  gallica,  sabina,  sanguinaria,  santonica,  sassafras,  senega,  ser- 
pentina, sinapis  alba,  sinipis  nigra,  spigelia,  staphisagria,  strophan- 
tus, sumbul,  valerian  and  zingiber. 
CONCLUSION. 
The  value  of  the  study  of  the  characteristic  form,  or  absence  of 
calcium  oxalate  crystals,  is  at  once  apparent  when  we  consider  the 
ease  with  which  one  can  distinguish  without  question  the  Solana- 
ceous  leaves,  horny  belladonna  root  from  inula,  the  genuine  cinna- 
mons, strophanthus  seeds,  and  other  drugs  from  those  that  are 
spurious ;  as  also  true  spigelia  from  an  adulterant  which  contains 
calcium  carbonate.  Examples  requiring  verification  of  this  kind 
are  continually  coming  up  in  not  only  the  determination  of  pow- 
dered drugs,  but  crude  drugs  as  well. 
THE  DETERIORATION  OF  ARTIFICIAL  FOODS. 
By  Chari^s  H.  IvAWalIv. 
The  deterioration  or  change  which  so  often  takes  place  in  artifi- 
cial foods,  is  a  subject  which  is  of  vital  importance,  not  only  to  the 
manufacturer  who  prepares  the  food  and  puts  it  upon  the  market, 
but  also  to  the  consumer  who  purchases  it. 
The  druggist  who  keeps  it  in  stock  is  an  interested  party  as  well 
as  the  physician  who  recommends  its  use. 
In  view  of  the  fact  that  there  are  so  many  persons  concerned  in 
the  matter,  it  is  strange  that  little  or  nothing  has  been  published 
relative  to  a  matter  of  such  widespread  importance,  but  the  fact 
remains  that  all  of  the  literature  on  the  subject  is  fragmentary  and 
confined  almost  exclusively  to  technical  works  with  which  the 
average  pharmacist  or  physician  is  unfamiliar, 
The  following  paper  is  offered  with  the  hope  that  a  proper  un- 
derstanding of  the  principles  involved  will  result  in  the  instituting 
of  such  precautionary  measures  as  will  be  found  necessary  to  pre- 
vent the  likelihood  of  possibility  of  such  change  taking  place. 
To  intelligently  comprehend  the  subject,  some  consideration 
