Am.  Jour.  Pharm.  ) 
June,  1879.  / 
V arieties. 
they  have  met  with  approval  from  the  West  Indies  and  from  the  Spanish  islands, 
from  which  large  orders  have  already  been  received.  The  trade  in  syrups  in  this 
hemisphere  has  heretofore  amounted  to  millions  of  dollars,  which  amount  has  not 
only  gone  out  of  this  country  to  foreign  nations,  but  has  also  been  taken  away  from 
the  trade  of  the  United  States  with  those  countries  which  by  their  near  proximity 
would  be  supposed  to  have  preferred  commercial  relations  with  North  America  than 
any  other  part  of  the  world.  The  success  of  the  experiment  bids  fair  to  bring  to 
the  United  States  a  large  trade,  besides  driving  out  of  this  market  another  of  those 
foreign  products,  the  control  of  the  sale  of  which  has  heretofore  been  held  abroad. 
—  Confect.  Jour  ,  May. 
Manufacture  of  Celluloid — Celluloid  is  made  by  dissolvingpyroxylin  in  camphor 
■instead  of  ether  or  alcohol.  A  solution  of  one  part  of  camphor  in  8  of  alcohol  is 
made;  pyroxylin  is  ground  in  water,  the  desired  colors  added  and  all  water  removed 
from  the  mixture  by  pressure  ;  the  camphor  solution  is  then  added  in  the  proportion 
of  one  part  to  two  parts  of  pyroxylin,  the  mixture  is  stirred  and  allowed  to  stand  in 
a  closed  vessel  until  the  solvent  has  penetrated  all  parts,  when  the  mass  is  expressed 
and  formed  into  the  desired  shape  by  means  of  a  hydraulic  press,  being  heated  at  the 
same  time  from  650  to  i3o°C,  when  a  solid,  uniform  piece  of  celluloid  is  obtained. 
Artificial  Ivory  is  made  out  of  celluloid,  as  follows  :  ioo  parts  of  pyroxylin,  ground 
in  water,  and  pressed  almost  dry,  are  mixed  with  100  parts,  by  weight,  of  powdered 
ivory,  and  50  parts  of  camphor,  the  moisture  is  removed  from  the  mass  by  pressure, 
and  50  parts  of  nitric  ether  are  added,  when  it  is  allowed  to  stand  for  several  hours 
in  a  closed  vessel.  It  is  then  compressed  in  a  heated  cylinder  in  a  hydraulic  press 
and  rolled  out  between  heated  rollers,  when  it  looks  like  ivory. —  Chem.  Centralbl., 
Dec.  25,  1878,  p.  831,  from  Ind.  El, 
Effect  of  Animal  Charcoal  on  Salts.— The  systematic  researches  of  Leo  Lieber- 
mann  proved  that  not  only  many  salts  are  retained  by  animal  charcoal  when  their 
•solutions  are  filtered  through  it,  but  that  many  are  entirely  decomposed  by  it.  If 
a  neutral  solution  of  these  salts  is  poured  on  a  charcoal  filter,  the  filtrate  consists  of 
an  acid  liquid,  the  whole  base  and  a  smaller  or  larger  portion  of  the  acid  being 
retained  by  the  charcoal.  Ztschr.  f.  Analyt.  Chem.,  1879,  No.  1,  p.  95,  from  Sitz- 
.ungsber.  d.  k.  Akad.  d.  Wissensch.  z.  JVien. 
Bronzing  Liquid. — Dissolve  10  parts  fuchsin  and  5  parts  purple  anilin  in  100 
parts  95  per  cent,  alcohol,  on  a  water- bath  j  add  5  parts  benzoic  acid  and  boil  for 
5  to  10  minutes,  until  the  greenish  color  of  the  mixture  turns  bronze-brown.  This 
brilliant  bronzing  liquid  is  applied  with  a  brush,  answering  well  for  all  metals  and  for 
other  materials,  and  drying  quickly. — Pharm.  Centralh.,  Oct.  31,  1878,  p.  416,  from 
Chem.  Ztg. 
