130  Abstracts  from \  the  French  Journals.  {AmMa°rch\?f9Lin* 
Solutions  of  1  to  5,000  may  be  prepared  by  adding  to  the  above, 
four  times  its  weight  of  water.  The  author  used  salicylate  of 
mercury  (as  an  antisyphilitic)  both  hypodermically  and  by  the 
mouth.  For  internal  medication  he  gave  15  to  20  gm.  daily  of  the 
I  to  1,000  solution.  For  subcutaneous  injections  he  gave  a  1  to 
100  solution,  prepared  as  above,  so  that  1  ccm.  would  represent 
about  1  cgm.  of  salicylate  of  mercury.  The  injections  did  not 
cause  pain  or  abscess. 
Copper  Colorations  of  Vegetables. — At  a  meeting  of  the  Paris 
Society  of  Pharmacy,  Dec.  3,  1890,  a  paper  by  M.  Mestre  was  dis- 
cussed, in  which  the  author  claimed  that  the  copper  colorations 
existing  naturally  or  artificially  in  vegetables,  are  perfectly  harm- 
less. He  said  that  there  was  often  less  copper  in  colored  conserves 
than  in  many  unsuspected  aliments,  and  the  copper  was  found  only 
in  conditions  of  difficult  solubility.  In  colored  peas  the  average 
proportion  of  copper  present  was  7  cgm.  to  y2  kilogramme,  but  he  had 
found  as  much  as  21  cgm.  The  average  quantity  in  beans  was  56 
mgm.;  the  maximum  quantity  was  99  mgm.  Bread,  he  stated,  con- 
tains an  average  of  5  mgm.  of  copper  per  kilogramme,  and  wheat  5 
to  10  mgm  Preparations  of  pork  contained  51  mgm.,  and  those 
of  geese  35  cgm.  Chocolate  contained  36  mgm.  The  conclusions 
of  the  author  were  that  people  might  use  and  abuse  the  privilege 
of  employing  colored  vegetables  without  feeling  toxic  effects  from 
the  copper  contained  in  them. 
Arsenical  and  Antimonial  Stains  :  Their  Differentiation. — 
Azotized  solutions  of  molybdate  of  ammonia  have  long  been  used 
in  searching  for  arsenic,  but  no  one  seems  to  have  applied  its  reac- 
tion for  the  differentiation,  in  toxicology,  of  spots  made  by  arsenic 
from  those  made  by  antimony.  While  it  may  be  said  that  the 
arsenio-molybdate  and  the  phospho-molybdate  of  ammonia  present 
identical  characters,  we  know  that  no  trace  of  phosphoric  com- 
pounds can  exist  in  stains  of  arsenic  or  antimony  -furnished  by 
Marsh's  apparatus,  it  is  proper  to  affirm  the  presence  of  arsenic 
when  we  obtain  crystals  of  arsenio-molybdate  of  ammonia  in  the 
manner  about  to  be  described.  The  suspected  spots,  brought 
together  in  a  porcelain  capsule,  are  treated  with  3  or  4  drops  of 
pure  nitric  acid,  which  will  dissolve  either  arsenic  or  antimony. 
The  solution  is  heated  for  a  few  minutes  and,  on  removal,  treated 
with  4  or  5  drops  of  molybdate  of  ammonia  in  azotized  solution. 
