Action  of  Metals  and  Liquids. 
No. 
1. 
2. 
a 
Ha. 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 
10. 
Nitrate  of  Ammonium. 
Grains  diluted  Value  of 
to  20  ozs.  Deflection. 
80  ....  .-0002) 
..240  ....  ■     -0228  V 
..480  ....  •     -0590 j 
Chloride  of  Ammonium. 
Value  of 
Grains.  Deflection. 
25  diluted  to  20  ozs.  .     -0020") 
50      „  „  -0029 
..       100      „  „  -0147 
..       200      „  ,,  -0647 
. .       400      „  „  -1583 
..       800      „  „  .    -v5551 
. .     1000      „  „  -6744 
..     1600      „  ,  .-6258 
. .     2000      „  ,,  -     -7479 
. .     Saturated  solution  (undiluted)    -1210  J 
Hot  plate  negative. 
Acid  reaction. 
Hot  copper  positive. 
Solutions  extremely 
faintly  acid.  Both 
^plates  tarnished  by 
the  stronger  solution 
but  the  hot ,  one  the 
most  so,  and  a  little 
copper  was  dissolved. 
Aqueous  Hydrocyanic  Acid. 
Scheele's  strength.     The  hot  plate  was  feebly  positive.     Value 
of  deflection  *0006. 
Cyanide  of  Potassium. 
Value  of 
Deflection. 
f  Hot  copper  positive. 
No. 
1. 
2. 
Grains  diluted 
to  12  ozs. 
No. 
1. 
2. 
No. 
1. 
2. 
3. 
4. 
5. 
6. 
100 
1000 
Grains  diluted 
to  20  ozs. 
,.       500 
,.     1000 
•9854     -^ucn     £as     ev°lvea 
1-8164  l  ^rom  ^e    kQt    P^te 
I  only  in  the  strongest 
(^solution. 
Ferrocyanide  of  Potassium. 
Value  of 
Deflection. 
Hot  plate  positive. 
•0136     ^i*!11^    feebly   alka- 
•0045^  ^ne'    B0^  plates  ^°e" 
|  came  pink  like  new 
(^copper. 
Oxalic  Acid. 
Value  of 
Deflection. 
•ooor 
•0002 
•0006 
•0016 
•0064 
Grains. 
25  diluted  to  20  ozs. 
50      „ 
100       „ 
200      „ 
400      „ 
M 
Saturated  solution  (undiluted)    -0070 
The  hot  plate  was 
negative,     and  the 
Opiates  were  not  tar- 
nished at  all. 
Glacial  Acetic  Acid. 
The  hot  plate  was  negative.     Seven  solutions,  containing  from^ 
ounce  to  4  ounces  by  measure  of  the  acid  in  20  ounces  by  measure, 
gave  only  extremely  feeble  currents.     The  plates  remained  bright. 
