Am.  Joua.  Pharm.  ) 
Mar.  1,  1873.  J 
Varieties. 
131 
tablished.  We  remained  with  him  about  half  an  hour  longer,  and,  before  leav- 
ing, gave  him  a  cup  of  strong  coffee,  which,  however,  was  vomited.  I  saw  the 
patient  again  the  following  morning,  when  he  expressed  his  snrprise  at  being 
-alive,  as  he  had  taken,  he  said,  an  ounce  of  Fleming's  tincture  of  aconite. — 
British  Med.  Jour.,  Dec.  21,  1872. 
Abortive  Treatment  of  Boils  and  Felons. — We  find  quoted  from  the  Giorn. 
dell  Acad.  Med.  di  Ton'no  the  following  method  of  treating  boils  and  felons, 
which  Dr.  Simon  regards  as  almost  infallible  :  Wherever  the  boil  may  be,  and 
of  whatever  size,  so  long  as  suppuration  has  not  commenced,  rub  it  gently  with 
the  finger  wet  with  camphorated  alcohol,  pressing  especially  on  its  centre.  Do 
this  half  a  minute  at  a  time  for  seven  or  eight  times,  and  then  cover  the  part 
with  camphorated  olive  oil.  If  one  operation  does  not  produce  resolution, 
repeat  it  at  intervals  of  six  hours.  A  felon  may  be  bathed  ten  minutes  in  cam- 
phorated alcohol,  then  dried  and  covered  with  the  oil.  The  writer  has  never 
known  a  felon  fail  to  succumb  to  three  of  these  operations. — N.  Y.  Med.  Jour., 
Feb.,  1873,  from  Gaz,  Med.  Ital.,  Nov.,  1872. 
Phosphorescent  Mixtures  — Phosphorescent  tubes  have  been  sold  in  France 
and  Germany  for  several  years,  but  the  method  of  their  preparation  has  not 
been  divulged.  Dr.  Seelhorst,  of  Nuremburg,  has  been  experimenting  on  the 
subject,  and  very  considerately  makes  public  the  best  way  to  secure  mixtures 
that  will  afford  all  the  colors  of  the  rainbow,  and  are  capable  of  use  in  imita- 
tions of  flowers,  insects  and  objects  of  natural  history.  After  the  powders  are 
prepared  they  can  be  stirred  into  melted  paraffin  ;  and,  by  means  of  a  brush, 
any  pattern  or  design  may  be  put  upon  glass.  By  protecting  the  glass  in  a 
frame  the  powder  will  retain  the  property  of  glowing  for  a  year  or  more.  The 
putting  of  phosphorescent  mixtures  upon  glass  in  the  form  of  flowers  is  capable 
of  very  beautiful  application,  and  is  one  that  has  not  been  very  extensively 
practised.  With  proper  care  and  study,  a  landscape  could  be  drawn  on  glass 
which,  after  exposure  to  sunlight,  would  shine  in  the  dark  and  form  a  picture  of 
considerable  duration.  The  use  of  the  paraffin  is  to  protect  the  powders  from 
the  action  of  moisture  and  prevent  decomposition.  As  a  general  rule,  it  is 
better  to  hermetically  seal  the  mixtures  in  flat  bottles,  when  they  will  retain 
their  good  properties  for  years.  The  following  colors  can  be  obtained  very 
readily  : 
Green. — Hyposulphite  of  strontia,  heated  for  fifteen  minutes  over  a  Berze- 
lius  lamp  and  for  five  minutes  over  a  blast  lamp  till  it  is  fused,  yields  a  yellow- 
ish-green color  after  exposure  to  sunlight.  The  same  color  can  be  obtained 
by  taking  equal  parts  of  carbonate  of  strontia  and  lac  sulphuns,  heat  gently 
for  5  minutes,  then  strongly  for  25  minutes  over  a  Bunsen  burner,  and  finally 
five  minutes  over  a  blast.  It  is  granular  and  yields  a  fine  green  color,  darker 
than  the  preceding. 
Blue. — Sulphate  of  strontia  is  prepared  by  precipitating  with  sulphuric  acid 
from  chloride  of  strontium;  the  precipitate  is  dried,  heated  in  a  current  of 
