^m'DecU,ri8P89arm-}  Index.  655 
•Oil,  myrtle,  composition  of  .   246 
neatsfoot,  iodine  number  ......   197 
olibanum,  constituents  and.  characteristics   412 
olive,  comparison  of  A.merican  with  foreign   225,  261 
detection  of  cotton-seed  oil  in  (auric  chloride)  23,  65 
iodine  number  197,  226 
onion,  distillation  of   374 
palm,  iodine  number     197 
peppermint,  relation  of  production  to  demand   372 
petitgrains,  commercial  value  of   372 
rapeseed,  iodine  number   ,   197 
retinospora  resembles  savin   374 
rose,  determination  of  purity   373 
sage,  constituents,  etc   412 
salvia  sclarea,  properties  and  yield   374 
sassafras,  poisoning  with  :   116 
sesame,  yield  of  sativic  acid   471 
star-anise,  congealing  point  of,   256 
yield,  varieties,  etc...     474 
sunflower,  composition  of   471 
walnut,  preparation,  use,  etc   419 
wintergreen,  artificial,  composition  of  '.   403 
comparison  with  birch  oil   398 
Oils  of  aurantiaaese,  manufacture  from  the  peels   512 
fixed,  detection  of  mineral  oil  in   413 
gold  chloride  and  silver  nitrate  as  tests  for  65,  106,  226 
non-drying,  composition  of  '.   471 
rancid,  treated  with  alcohol   247 
vegetable,  contain  linolein   507 
volatile,  color  reactions  ,   180 
iodine  absorption   301 
Ointment,  see  Unguentum  and  Paste,  medicated. 
for  burns  ,   137 
Ointments,  preparation  with  tragacanth   287 
Oleandrine,  physiological  action  of   174 
Oleate  of  morphine,  extemporaneous  preparation   442 
Oleife,  a  castor-oil  soap  ,   443 
Oleoresina  aspidii,  activity  of  precipitate  in   169 
Opium,  Egyptian,  of  the  Cairo  bazaars   187 
Orcinol  as  test  for  chlorates,  nitrates  and  nitrites   91 
Orthomethylacetanilide,  see  Exalgin. 
Ouabain,  preparation  and  properties  84,  469 
Oudemans,  A.  C.,Jr.  Capreine   573 
Owings,  O.  Y.    Sodium  carbonate  and  bicarbonate   336 
Oxydendrum  arboreum,  free  from  andromedotoxin   361 
Oxygen,  preparation  from  permanganate   79 
of  pure,  from  hydrogen  peroxide   565 
Oxytropis  Lamberti,  a  loco  weed   409 
Papain  compared  with  pepsin   527 
Papayotin,  use  in  fissure  of  the  tongue   16 
Paper,  litmus,  blue,  preparation  of  sensitivee   245 
test,  for  electrode   131 
Paraffin,  estimation  in  petroleum  and  lubricating  oils   22 
liquid,  a  colorless  variety,  glycolin    316 
solubility  and  estimation   152 
Paste,  medicated,  for  skin  diseases  (Unna)   17 
Pawlewski,  B.,  and  /.  Fikmonowics.    Solubility  and  estimation  of  paraffin...  152 
Pelargonium  zonale,  coloring  matter  of  flowers   443 
Pepper,  black,  a  novel  adulterant  (iron  ore)   470 
Pepsin  in  normal  and  pathological  urine  ,   365 
