AiM.  Jour.  Pharm.  I 
June  1,  1873.  j 
Varieties. 
277 
the  sp.  gr.  1-114,  dissolved  0  71  per  cent,  of  iron  soap,  0  94  of  magnesia  soap, 
and  1*18  of  lime  soap.  The  metallic  and  earthy  sub-soaps,  which  impregnate 
the  fibre  of  wool  in  the  process  of  combing,  are  easily  emulsified  by  water 
mixed  with  glycerin.  Sulphate  of  lime  dissolves  in  glycerin  to  the  extent  of 
0  957  per  cent.,  and  the  amount  dissolved  increases  with  the  temperature. — 
Chem,  News,  Tjond.,  April  253  1873, from  Compt.  rend. 
An  Application  to  Corns. — A  correspondent  in  Illinois  writes  us:  "I  find  in 
the  'Medical  and  Surgical  Reporter'  of  Jan.  25,  1873,  a  cure  for  corns,  and  as 
that  remedy  (green  peach  tree  leaves)  could  not  be  easily  obtained  at  present 
in  this  climate,  and  as  corns  are  most  troublesome  in  winter,  I  would  suggest  a 
remedy  equally  effective  and  obtainable  at  any  time.  It  is  castor  oil  applied 
to  the  corn  after  paring  closely  each  night  before  g'oing  to  bed.  It  softens  the 
corn  and  it  becomes  as  the  other  flesh.  It  will  cure  every  time." — Med.  and 
Surg.  Reporter,  Feb.  22,  1873. 
On  the  Value  of  Sulphate  of  Cinchonia. — M.  Briquet,  the  well-known  author 
of  an  exhaustive  treatise  on  cinchonia,  advocated  the  properties  and  uses  of 
sulphate  of  cinchonia  at  a  recent  meeting  of  the  Paris  Academy  of  Medicine. 
His  conclusions  were  based  upon  893  authenticated  cases  of  cure  by  the  sulph- 
ate, from  Magendie  and  Chomel  to  our  days.  Its  success  was  especially  great 
in  cases  of  intermittent  fever  of  middling  intensity.  Furthermore,  it  arrests 
the  paroxysms  of  typhoid,  amends  the  symptoms  of  intermittent  neuralgia,  and 
is  of  great  benefit  in  acute  articular  rheumatism.  Dr.  Briquet  lays  great  stress 
on  the  mode  of  administering  the  drug.  It  should  be  given  in  a  watery  solu- 
tion, in  doses  of  from  fifty  centigrammes  to  one  gramme  (eight  to  fifteen  grains], 
according  to  the  intensity  of  the  fever.  The  whole  dose  must  not  be  given  at 
once,  but  must  be  divided  over  five  or  six  hours,  and  it  is  extremely  important 
that  the  substance  should  be  taken  during  the  apyretic  interval,  and  at  least 
eight  or  ten  hours  before  the  return  of  the  fit. — St.  Louis  Med.  and  Surg. 
Journ.,  March,  1873,  from  London  Lancet. 
Improvement  in  Bending  Glass  Tubes. — A.  H.  Gallatin. — If  the  glass  tube 
we  desire  to  bend  be  filled  with  sand,  and  each  end  stopped  to  prevent  its 
escape  on  heating  over  a  Bunsen  burner,  it  will  be  found  that  the  tube  may  be 
quite  doubled  if  desired,  a  perfect  curve  being  produced.  In  this  way  we  may 
promptly  produce  accurate  bends  of  any  desired  size,  in  tubes  of  any  bore, 
without  any  previous  skill  in  glass-working.  Obviously,  the  principle  depends 
on  a  uniform  distribution  by  the  sand  of  the  pressure  exerted.  A  similar  plan 
is  resorted  to  by  metal-workers  in  bending  tubes  of  lead. — Journ.  Franklin 
Inst.,  March,  1873. 
Gilding  Iron. — The  employment  of  sodium  amalgam  is  recommended  by 
Kirchmann  as  a  simple  and  effective  meaus  of  covering  iron  with  a  gilded  sur- 
face. The  process,  in  brief,  consists  in  first  spreading  the  amalgam  upon  the 
surface  of  the  metal,  which  at  once  coats  itself  with  a  layer  of  quicksilver,  even 
