Am.  Jour.  Phabm.  ) 
May  1,  1872.  j" 
The  Pharmacy  Act. 
225 
Ether  Glue. — An  excellent  liquid  glue  is  made  by  dissolving  glue  in  nitric 
«ther.  The  ether  will  only  dissolve  a  certain  amount  of  glue,  consequently  the 
solution  cannot  be  made  too  thick.  The  glue  thus  made  is  about  the  consist- 
ency of  molasses,  and  is  doubly  as  tenacious  as  that  made  with  hot  water  If 
a  few  bits  of  India  rubber,  cut  into  scraps  the  size  of  buckshot,  be  added,  and 
the  solution  be  allowed  to  stand  a  few  days,  being  stirred  frequently,  it  will  be 
all  the  better,  and  will  resist  the  dampness  twice  as  well  as  glue  made  with 
water. — Ibid. 
Silvering  of  Glass — Dr.  Bothe. — This  lengthy  paper  contains  several  hints 
and  practical  receipts  for  the  purpose  of  silvering  glass,  from  which  we  quote 
the  following  particulars  :  Ingredients  and  apparatus  required — Sal-Seignettfr 
(tartrate  of  potassa  and  soda),  solution  of  that  salt  in  water,  1  grm.  to  50  of 
water;  of  ammonia  liquida,  50  c.c;  solution  of  nitrate  of  silver,  1*8;  glass  flask 
of  1000  c.c.  cubic  capacity  for  the  reduction  fluid,  and  a  little  flask  for  the  sil- 
vering fluid.  Reduction  fluid — Mix  with  900  c.c.  of  pure  distilled  water  90  c.c. 
of  the  above-mentioned  solution  of  the  Seignette  salt;  pour  this  liquid  into  the 
glass  flask,  and  let  it  boil  violently;  while  thus  boiling  add  20  c.c.  of  the  solu- 
tion of  nitrate  of  silver,  and  continue  the  boiling  for  some  ten  minutes  longer; 
this  fluid,  which  now  contains  oxytartrate  of  oxide  of  silver,  can  be  kept  for 
any  length  of  time,  and  improves  on  keeping  ;  if  left  in  the  flask,  which  for  con- 
venience should  be  labelled  (1),  the  liquid  has  to  be  filtered  before  use  through 
filtering  paper.  The  silvering  fluid  is  made  in  the  following  manner  :  Nitrate  of 
silver  is  first  dissolved  in  distilled  water,  and  next  ammonia  added  until  the 
precipitate  at  first  appearing  is  again  dissolved  ;  the  liquid  is  again  filtered,  and 
diluted  with  so  much  water  that  1  grm.  of  the  silver  salt  makes  100  c.c.  of  solu- 
tion. For  the  purpose  of  silvering,  equal  quantities  by  bulk  of  the  fluids  alluded 
to  are  first  each  separately  filtered,  and  next  poured  together  into  a  vessel  of 
suitable  size  and  shape,  wherein  the  glass  plate  to  be  silvered  is  then  placed  ; 
this  glass  should  be  first  scrupulously  cleaned. —  Chem.  News,  Lond.,  March  15, 
1872,  from  Bay.  Ind.  und  Gew.  Blatt. 
A.  IS    A.  O  T 
To  Regulate  the  Practice  of  Pharmacy  and  Sale  of  Poisons  and  to 
Prevent  Adulterations  in  Drugs  and  Medicinal  Preparations  in 
the  City  of  Philadelphia. 
Whereas  The  safety  of  the  Public  is  endangered  by  want  of  care  in  the  sale 
of  Poisons  whether  to  be  used  as  such  for  legitimate  purposes  or  employed  as 
medicines  and  dispensed  on  the  prescriptions  of  Physicians;  and  whereas  The 
power  of  Physicians  to  overcome  disease  depends  greatly  on  their  ability  to 
obtain  good  and  unadulterated  Drugs  and  skilfully  prepared  Medicines ;  and 
whereas  The  class  of  persons  to  which  the  preparation  and  sale  of  Drugs  Medi- 
cines and  Poisons  properly  belong  known  as  Apothecaries  Chemists  and  ^rug- 
gists  or  Pharmacists  should  possess  a  practical  knowledge  of  the  business  and 
science  of  Pharmacy  in  all  its  relations;  therefore 
15 
