14  Dangerous  Candy \  }Am>^8P7h7arm 
Cane-sugar  is  incapable  of  affecting  this  change  even  in  highly  con- 
centrated solution  and  after  heating  for  a  much  longer  time  with  the 
ammonio-cupric  solution,  although  it  was  observed  that  when  associated 
with  grape-sugar  a  smaller  amount  of  the  latter  is  required  for  the 
decolorization  of  the  liquid. 
The  solution  of  this  salt  of  copper,  as  will  be  observed,  being  con- 
siderably less  sensitive  than  the  test  solutions  of  Trommer  and  Fehling, 
can  by  no  means  supply  the  place  of  these  valuable  reagents,  but  may 
add  one  more  to  the  number  of  the  corroborative  tests  now  in  use. 
It  may  also  be  mentioned  in  this  connection  that  the  solution  of 
ammonio-cupric  sulphate  has  met  with  a  somewhat  similar  application 
by  virtue  of  its  capability  of  converting  morphia  into  a  basic  oxydation 
product,  oxy-morphia,  C17H19N04,  which,  according  to  Hesse,  is  iden- 
tical with  another  alkaloid  of  opium,  having  the  same  chemical  compo- 
sition, pseudo-morphia,  and  which  is  insoluble  in  ether,  alcohol  and 
water. 
DANGEROUS  CANDY. 
By  H.  G.  Debrunner. 
On  a  recent  trip  to  Massillon,  O.,  I  happened  to  pass  the  show- 
windows  of  a  fine  confectionery  store,  where  a  beautiful  display  of 
candies  wrapped  in  brilliantly-colored  paper  of  all  shades  could  be  seen. 
My  attention  was  especially  directed  to  some  "kisses"  enclosed  in 
green  paper.  Suspecting  that  the  pigment  might  be  Paris-green,  1 
purchased  a  small  quantity  of  the  suspected  candy,  and  subjected  the 
paper  in  which  it  was  wrapped  to  a  careful  chemical  analysis,  with  the 
following  alarming  results  : 
Size  of  one  piece  of  paper,  .  .  .  .  .  3  X  2j  in.  ; 
Average  weight  of  one  piece  of  paper,  .  0-302  grm.  (5  grains)  ; 
Quantity  of  pigment  in  one  paper,  .  .  0-062  grm.  (1  grain)} 
Quantity  of  arsenic,  As203,  in  one  paper,  .  0*032  grm.  (J  grain)  $ 
Quantity  of  cupric  oxide,  CuO,  in  one  paper,  0-022  grm.  (J  grain)  j 
Corresponding  quantity  of  met.  copper,  Cu,    0*017  grm.        grain)  . 
Paris  green,  aceto-arsenite  of  copper  may  be  considered  a  combina- 
tion of  arsenite  of  copper,  or  Scheele's  green  and  acetate  of  copper,  or 
verdigris,  thus  uniting  the  poisonous  qualities  of  copper-salts  and 
arsenic. 
