AMjaJn0Uf;18™'}  Antimony  Terchloride  as  a  Reagent  for  Oils.  25 
I  will  here  mention  a  curious  change  which  takes  place  if  this  phos- 
phoretted  resin  be  reheated.  When  it  reaches  a  certain  temperature 
it  becomes  of  a  whitish  cream  color  throughout ;  if  the  temperature  be 
raised  still  higher  it  again  becomes  transparent  ;  this  phenomenon 
does  not  occur  in  the  cooling.  It  is  probably  due  to  the  influence  of 
molecular  change. 
The  formula  I  would  suggest  for  its  exhibition  is  the  following : — 
Take  of— 
Phosphoretted  Resin,  4  per  cent.         .        .        25  grains. 
Powdered  White  Sugar  .        .        .        .  75 
Tincture  of  Tolu,  a  sufficient  quantity. 
Pulverize  the  resin,  mix  with  the  sugar,  and  form  into  a  mass  with 
tincture  of  tolu, — eight  to  ten  drops  are  sufficient ;  then  divide  into 
twenty  pills,  each  pill  will  contain  one-twentieth  of  a  grain.  This 
forms  a  mass  of  an  excellent  consistence,  and  pills  made  therefrom 
retain  their  form  and  present  an  elegant  appearance  without  the 
addition  of  any  coating  ;  they  have  but  a  faint  odor  of  phosphorus,  and 
that  may  be  completely  removed  by  the  addition  of  oil  of  peppermint. 
The  experience  gained  from  the  administration  of  these  pills  in  the 
in-and  out-patients'  departments  of  the  hospital  to  which  I  am  at- 
tached proves  that  the  therapeutic  properties  of  the  phosphorus  are  in 
no  way  injured  or  modified  by  this  combination,  but  that  it  is  fully 
equal  to  any  that  had  been  previously  used. 
In  conclusion,  I  consider  the  advantages  of  this  preparation  to  be 
that  it  is  inoffensive  to  the  tastes  of  the  patient,  definite  and  reliable 
for  the  prescriber,  ready  and  convenient  to  the  dispenser,  and  I  believe 
judging  from  its  nature  it  has  unlimited  keeping  powers. — Pharm. 
Journal  (London),  Dec.  6th,  1873. 
ON  ANTIMONY  TERCHLORIDE  AS  A  REAGENT  FOR  OILS. 
By  Isidor  Walz,  Ph.  D. 
All  chemists  who  have  occasion  to  occupy  themselves  with  the 
analysis  and  testing  of  oils  must  admit  the  unsatisfactory  condition 
of  our  science  as  regards  these  substances,  and  the  desirableness  of 
finding  a  larger  number  of  characteristic  reagents  for  the  same. 
With  this  object  in  view  I  first  took  up  anhydrous  stannic  chloride, 
but  abandoned  it  after  trying  it  with  several  oils,  because  the  abun- 
dant fumes  which  it  gives  off  render  it  a  very  disagreeable  reagent  to 
