545 
temed triple Prussiates. 
H. Experiment 2. Phosphuret of lime was thrown into the 
simple prussiate of ammonia, phosphuretted hydrogen was as 
usual produced, but no red tinging acid was formed. 
I. Experiment 3. Phosphuret of lime thrown into prussiate 
of mercury threw down the mercury as a black powder, the 
liquid after this contained prussiate of lime, but none of the red 
tinging acid. 
K. Experiment 4. Phosphuretted hydrogen gas was passed 
through prussiate of mercury, the mercury was thrown down, 
and Prussic acid set free. 
L. Experiment 3. Arseniuretted hydrogen gas acted in a 
similar manner. 
M. Experiment 6. Sulphuretted hydrogen gas passed through 
the same salt occasioned similar phenomena, black sulphuret 
of mercury being formed and Prussic acid disengaged. 
N. Experiment 7. The same gas passed through the simple 
prussiate of ammonia did not alter that prussiate. 
O. Experiment 8. 0.5 of a cubic inch of the same gas, at 
mean temp, and pressure being passed up into a tube over 
mercury, and an equal volume of Prussic acid gas being added, 
the volume of the two gases was not altered by the mixture, 
nor did any combination take place. 
P. Experiment g. The preceding experiment was repeated 
with the addition of passing 150 electric discharges through 
the two gases, but no combination ensued. 
Q. Experi^nent 10, A repetition of Experiment 8, with the 
addition of 0.5 of a cubic inch of chlorine gas, the volume of 
the mixed gases was diminished to one-third of their former 
bulk, and sulphur w-as deposited on the inside of the tube, but 
the Prussic acid gas was unaltered. 
