AmM°ay;if93arm"}  Gleanings  from  the  German  Journals.  219 
which  is  easily  done  by  simply  turning  the  knob  to  the  right  or 
left.  In  making  tablets,  whenever  you  hear  a  rubbing  sound  when  the 
tablet  is  ejected  you  may  know  that  the  material  needs  correcting.  As 
the  feeder  is  so  easily  taken  off,  you  can  remove  it  with  its  contents 
without  wasting  a  particle,  correct  the  material  by  adding  talc,  or 
what  else  is  needed  ;  put  it  back  and  proceed.  Do  not  undertake  to 
make  tablets  too  fast ;  a  regular  easy  motion  is  the  best,  and  you 
will  accomplish  more  than  by  trying  to  do  a  great  deal  in  a  short 
time.  I  am  sure  this  machine  will  do  all  that  is  required  by  a  retail 
druggist,  as  well  as  it  is  possible  for  a  machine  to  do  it.  It  is 
strong,  it  takes  up  but  little  room,  is  easily  kept  clean  and  it  is  so 
simple  that  any  one  can  understand  it  and  run  it.  You  can  make 
quinine  tablets,  hypodermic  tablets  and  such  things  as  you  wish  to 
avoid  excipients  in  ;  besides,  by  the  constriction  of  the  feeder  you 
can  make  up  the  flat  friable  triturates  faster  and  more  regular  than 
on  plates,  and  that  too  without  the  use  of  talc  or  other  insoluble 
excipients.  The  how  to  do  those  things  does  not  properly  belong 
to  a  short  talk  on  tablets  ;  any  one  wishing  to  learn  can  do  so  on 
a  proper  occasion. 
Here  are  quinine  tablets,  made  without  gum,  oil,  starch  or  talc 
and  other  tablets  of  different  sizes  and  shapes,  made  on  a  machine 
similar  to  this,  which  should  be  evidence  conclusive  that  a  retail 
druggist  can  make  his  own  tablets  and  furnish  physicians,  who 
desire  to  think  for  themselves,  any  tablet  that  they  wish  to  pre- 
scribe, without  buying  a  hundred  to  fill  a  prescription  of  ten. 
GLEANINGS  FROM  THE  GERMAN  JOURNALS. 
By  Frank  X.  Moerk,  Ph.G. 
A  test  for  cineol  (eugenol),  suitable  for  its  detection  in  volatile  oils,C 
was  discovered  by  E.  Hirschsohn  in  determining  the  solubility  of 
iodol  in  volatile  oils ;  it  was  noticed  that  iodol  was  much  more  solu- 
ble in  some  oils  than  in  others,  and  that  in  some  oils  a  crystalline 
deposit  was  obtained  in  varying  periods  of  time  (one  minute  to 
twenty-four  hours).  The  oils  first  giving  the  test  contain  cineol  as 
the  chief  constituent,  according  to  the  investigations  of  Wallach  ; 
this  was  confirmed  by  using  chemically  pure  cineol  when  the  same 
compound  was  produced  ;  after  pouring  off  the  excessive  oil  from 
the  crystals,  the  latter  were  thoroughly  washed  with  petroleum- 
