402 
Practical  Notes, 
J  Am.  Jour.  Pharm» 
(    August,  1883. 
In  a  similar  manner  may  hydrochinone-cMnoline  be  obtained,  which 
has  similar  properties,  but  like  hydrochinone  turns  red  when  moist^ 
on  exposure  to  the  air.  Both  compounds  possess  antiseptic  and  anti- 
pyretic qualities,  and  are  being  used  in  the  hospital  of  Bern. — Ibid.y. 
885-887. 
Phenoresorcin  is  the  name  given  by  F.  Eeverdin  to  a  liquid  prepared 
by  melting  together  67  parts  of  phenol  with  33  parts  of  resorcin  and 
adding  10  parts  of  water.  This  mixture  remains  liquid  and  is  soluble 
in  water  in  all  proportions. — Pundschau,  Leitm.,  May  10,  1883;  La 
Puche  Phar. 
Granular  Extractmn  Ferri  "pomatum  has  been  observed  by  E» 
Mylius  who  found  it  to  contain  17*94  per  cent,  of  anhydrous  ferrous 
succinate,  of  which  salt  1*235  parts  are  soluble  in  100  parts  of  water. 
It  is  probable  that  fermentation  set  in  during  the  digestion  of  the 
apple  juice  with  iron ;  at  least  Hager  states  that  under  this  condition, 
an  unsightly  granular  extract  is  obtained. — Phar.  Centralhalle,  May  31, 
1883. 
Tinctura  Pigitalis,  which  had  been  kept  in  a  glass-stoppered  bottle 
for  about  two  years,  had  lost  by  evaporation  about  one  ounce,  and 
deposited  a  compact  precipitate.  This  was  microscopically  examined 
by  Dr.  H.  Stieren  and  consisted  of  chlorophyll,  red-brown  waxy 
extractive  and  of  a  yellowish,  more  or  less  crystalline  substance, 
supposed  to  be  digitalin.  The  precipitate  was  dissolved  in  one  ounce 
of  alcohol  sp.  gr.  0*88,  filtered  and  mixed  with  the  remaining  15  oz.  of 
the  tincture,  the  red-brown  color  of  which  being  thus  changed  to  the 
dark  greenish-brown  of  the  fresh  tincture.  Dr.  Stieren  directs  par- 
ticular attention  to  the  partial  separation  of  active  principles,  likely  to 
occur  with  the  deposition  of  precipitates  in  tinctures. — D.  Am.  Apoth. 
Ztg.,  May,  1883,  p.  122. 
Permanent  solution  of  ferrous  iodide. — Izard  recommends  the  addi- 
tion of  a  few  drops  of  alcohol  to  the  preparation  as  soon  as  the  iodine 
has  been  combined  with  the  iron.  He  regards  the  production  of 
aldehyd  as  likely  to  take  place,  in  consequence  of  which  the  oxidation 
of  the  ferrous  salt  is  prevented.  L'  Union  Pharm.,  May,  1883,  p.  196; 
Bidl.  Soc.  Phar.  Sud-Ouest. 
Tincture  and  fluid  extract  of  Colombo. — G.  W.  Kennedy  reported  to 
the  Pennsylvania  Pharmaceutical  Association,  that  the  best  menstruum 
for  exhausting  Colombo  is  a  mixture  composed  of  alcohol  70  parts. 
