INDEX.  587 
Pomegranate  bark   220 
Powdered  camphor   505 
Preparation  of  liquid  pepsin     97 
Preparation  of  hydrated  oxide  of  chromium   113 
Preparation  of  hydrate  of  chloral     177 
Preparation  of  oxygen  at  ordinary  temperatures   217 
Preparation  of  soap  for  soap  liniment   268 
Preparation  of  tannin   403 
Preparation  of  subacetate  of  lead  by  the  cold  process   467 
Preparation  of  pure  while  gutta  percha   469 
Preparation  of  bromide  of  sodium     509 
Preparation  of  caustic  soda  from  sodium   510 
Prescott,  Dr.  A.  B.,  simple  apparatus  for  rapid  evaporation   349 
Preservation  of  medicines  liable  to  deteriorate   400 
Prevention  of  concussion  in  boiling  liquids   218 
Procter,  William,  Jr.,  note  on  a  sample  of  Illinois  opium   68 
"  "  on  M.  Carres  apparatus  for  making  ice   102 
"  assay  of  a  pure  American  opium   124 
"  "  note  on  sulphocarbolic  acid  and  the  sulphooarbolates  131 
"  on  cod  liver  oil  and  the  products   214 
"  "  gleanings  from  foreign  journals    509 
Proceedings  of  the  American  Pliarm.  Association,  17th  meeting   183 
Pioceedings  of  the  American  Philosophical  Society   185 
Proceedings  of  the  Cai^ifornia  Pharmaceutical  Society.    187 
Proceedings  of  the  British  Conference  at  6th  annual  meeting   90 
Process  for  platinizing  glass,  porcelain,  &c   328 
Process  for  purifying  manufacturing  oils     512 
Production  of  iodine  and  bromine  427 
Production  of  sulphuric  acid  from  gypsum  ,   469 
Prof.  Liebig's  illness   379 
Protective  agent  against  moths   72 
Protocarbonate  of  iron,  Vallets   30 
Pumpkin  seeds — pepo  U.  S.  P   200 
Pure  iodate  of  potassa   217 
Pure  chloroform  ,   319 
Pure  methylic  alcohol   320 
Purification  of  bromide  of  potassium   174 
Purification  of  dextrine   327 
Purification  of  chloral  hydrate    ...  405 
Purity  of  the  yellow  bees  wax  of  pharmacy   536 
Pursh's  Journal   90 
Pyrogallic  acid,  poisonous  action  of   175 
Quinine,  the  best  vehicle  for     71 
Quinine,  light  sulphate  of     249 
Quinine-cincho,  analysis  of     343 
Radcma/rer,  C.  J.,  M.D.,  on  the  reaction  between  spirit  of  nitre  and  bi- 
carbonate of  potassa   106 
