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GLEANINGS  FROM  THE  FRENCH  JOURNALS. 
Camphorate  of  Quinia. — Sr.  Vicenzo  Frosini  Marietta  suggests 
this  salt  for  use  in  medicine  for  the  same  purpose  generally  that 
the  valerianate  of  quinia  is  used  ;  and  he  believes  that  the  c am- 
phora tcs  generally  deserve  a  respectable  position  in  therapeutics. 
Camphorate  of  quinia  may  be  prepared  either  by  saturating 
an  alcoholic  solution  of  camphoric  acid  with  pure  quinia  in  frag- 
ments to  perfect  neutralization,  and  evaporate  to  dryness  at  a 
temperature  below  104°  F. 
Or  it  may  be  prepared  by  double  decomposition  between  an 
alcoholic  solution  of  camphorate  of  lime  or  potassa,  and  a  solu- 
tion of  neutral  sulphate  of  quinia.  The  sulphate  of  lime  or 
potassa  precipitates,  and  the  camphorate  of  quinia  remaining  in 
the  filtered  solution  is  isolated  by  slow  evaporation  in  a  stove. 
The  salt  is  given  in  doses  of  three-quarters  of  a  grain  (0-5  deci- 
gram) every  half  hour.  The  author  prefers  to  give  this  salt  in 
combination  with  antimoniate  of  quinia :  about  5  grains  of  each 
salt,  made  into  ten  pills  with  extract  of  grey  cinchona  bark,  of 
which  one  pill  is  to  be  given  every  half  hour. — Bouchard,  Repert. 
de  Pharm.,  Mai,  1865. 
Agglutinative  tissue. — Dr.  Fort  (Rep.  de  Pharm.,)  suggests  as 
a  substitute  for  the  English  isinglass  plaster,  a  tissue  made  as 
follows : 
Take  of  Gum  arabic,  selected,  5  drachms. 
Distilled  water,  8       "  - 
Glycerin,  a  sufficient  quantity. 
Dissolve  the  gum  in  the  water,  and  add  sufficient  glycerin  to 
render  the  mucilage  of  the  consistence  of  syrup.    This  solution 
is  spread  by  means  of  a  brush  on  one  side  of  thin,  glazed  muslin. 
The  author  suggests  this  plaster  as  inodorous,  very  supple,  and 
as  not  cracking  in  winter,  owing  to  the  glycerin  in  its  compo- 
sition. It  adheres  strongly  by  simply  moistening  the  surface, 
and  can  be  easily  removed.  The  author  does  not  say  whether 
it  is  hygroscopic,  or  ill  adapted  for  a  damp  atmosphere. 
Preparation  of  chlorine. — M.  Shank  replaces  the  binoxide  of 
manganese  used  in  making  chlorine  with  chromate  of  lime,  ob- 
tained economically  by  calcining  chromate  of  iron  (ore)  with  lime 
in  a  current  of  air.    On  the  addition  of  hydrochloric  acid  the 
