NOTE  ON  FUNNELS  AND  WEIGHTS.  3 
parilla.  Senna,  Gentian,  Dulcamara,  Cinchona,  Colcliicum,  etc. ; 
to  the  Extracts  of  Arnica,  Cinchona,  Podophyllum,  Colocynth, 
Dulcamara,  Nuxvomica,  Ignatia,  Jalap,  and  Seneka;  the  Re- 
sins of  Jalap,  May-apple  and  Scammony,  and  to  compound 
Syrups  of  Sarsaparilla  and  Squills. 
Of  course  these  remarks  do  not  apply  to  the  tinctures  where 
alcohol  is  permanently  retained,  except  so  far  as  the  recovery  of 
the  last  portions  absorbed  in  the  dregs  is  concerned,  where  the 
the  bulk  of  these  renders  the  quantity  retained  an  object.  It  is 
suggested  that  the  impure  alcohol,  more  or  less  diluted,  which 
may  from  time  to  time  be  recovered  from  tincture  dregs  should 
be  kept  in  a  common  receptacle  until  its  quantity  offers  an  in- 
ducement to  purify  it  by  a  careful  distillation. 
Neither  do  they  apply  to  the  Ethers,  to  Chloroform,  or  to  the 
Spirits,  the  prices  of  which  will  have  to  be  raised  to  cover  the 
increased  price  of  the  alcohol  they  contain  or  consume. 
Allusion  has  been  made  to  distillatory  apparatus,  noticed  in  this 
number.  It  is  believed  that  these  offer  several  advantages  worthy 
of  adoption,  but  that  much  power  and  convenience  may  yet  be 
obtained  by  the  adaptation  of  a  steam  heating  apparatus,  capable 
of  being  carried  on  by  gas  heat  on  the  working  counter,  to  the 
operations  of  evaporation  and  distillation. 
Philadelphia,  Dee.  1863. 
NOTE  ON  FUNNELS  AND  WEIGHTS. 
By  Pkof.  Millington, 
Late  Professor  of  Chemistry  in  William  and  Mary  College,  Va.,  and  in  the 
University  of  Mississippi. 
To  the  Editor  of  the  Journal  of  Pharmacy  : 
Sir — On  page  572  of  'the  November  number  of  your  work, 
you  have  some  hints  in  regard  to  Funnels,  and  ask  an  improve- 
ment in  their  construction.  I  beg  to  say  I  have  been  in  the 
habit  of  using  a  simple  contrivance  in  my  Laboratory  that 
seems  to  obviate  the  difficulty  complained  of, — viz  :  the  escape 
of  air  from  a  bottle  while  the  liquid  is  flowing  into  it.  I  have 
several  pieces  of  wire,  or  sticks  glass,  or  strips  of  sheet  lead, 
