AmAug.r,'i878m'}  Gleanings  from  the  German  Journals.  381 
and  it  is  surprising  the  quantity  of  oil  that  can  be  added  without  per- 
ceptibly effecting  the  consistence  or  the  melting  point  of  the  finished 
suppository.  After  the  mass  is  made  it  can  be  conveniently  divided 
into  the  required  number  of  pieces,  on  the  ordinary  pill  machine,  by 
making  a  cylinder  of  it  the  required  length  (as  would  be  done  in  making 
pills),  and  pressing  it  firmly  between  the  divisions  instead  of  rolling  it, 
then  separate  with  a  spatula  the  several  divisions  made.  The  mass 
should  be  rolled  in  powdered  elm  or  lycopodium,  to  prevent  it  from 
adhering  to  the  pill  machine.  The  next  step  in  the  process  is  to  place 
the  hollow  cylinder  of  the  mould  in  its  position  on  the  stand,  drop  in 
one  of  the  pieces,  and  press  it  very  firmly  with  the  rod,  which  must  be 
turned  back  and  forth  a  few  times  to  enable  one  to  readily  detach  the 
suppository  after  it  has  been  pushed  out,  then  lift  the  upper  cylinder, 
twisting  it  in  the  act,  and  push  the  suppository  through  with  the  rod, 
and  it  is  finished. 
Suppositories  of  any  required  size,  between  ten  and  thirty-five  grains, 
can  be  well  moulded  in  a  machine  of  this  size.  And  the  cost  of  such 
a  machine  made  to  order,  of  brass,  will  not  exceed  three  dollars  ;  at 
least,  that  was  the  cost  of  the  first  one  I  had  made  (including  patterns 
and  everything)  from  a  rough  sketch  made  by  myself.  The  second 
one  made  did  not  cost  quite  so  much. 
The  same  principle  is  also  admirably  adapted  to  making  pessaries  by 
modifying  the  size  and  shape  of  the  mould. 
GLEANINGS  FROM  THE  GERMAN  JOURNALS. 
By  Louis  von  Cotzhausen,  Ph.G. 
New,  Convenient  and  Cheap  Dialyzer. — Huizinga,  in  Gron- 
ingen,  recommends  to  make  rectangular  bags  of  moist  parchment 
paper,  fastened  together  with  a  paste  consisting  of  a  warm  15  per  cent, 
gelatin  solution,  containing  3  to  5  per  cent,  of  chromate  of  potassium. 
The  dialyzers  are  dried  and  exposed  to  the  sunlight,  fastened  over  hard 
rubber  frames,  and  tested  by  filling  them  with  water.  Several  such 
bags  may  be  suspended  in  one  vessel,  care  being  taken  to  remove  the 
water  from  the  bottom  of  the  vessel  with  a  siphon,  and  to  continually 
supply  fresh  water  above.  Egg  albumen,  neutralized  with  muriatic 
acid,  lost  its  soluble  mineral  salts  in  such  dialyzers  in  the  course  of  24 
hours,  while  at  the   expiration  of  36  hours  it  was  identical  with 
