Dr, Hares Deflagrator and Calormmotor. 339 
imotor was interposed between the two halves of the Defla- 
grator, the proper poles of the latter instrument were con- 
nected with the two divisions of the troughs ; first, zinc, with 
copper, and copper with zinc, and then the reverse, and the 
power was received at the proper poles of the troughs, char- 
coal pee being used as before 
W e metals both of the Deflagrator and Calorimotor 
were in. =the air, a spark passed, such as corresponded with 
the power of the troughs only; when the Calorimotor was 
immersed, this power was neither increased nor diminished ; 
but when the Deflagrator was immersed, its power owed 
freely through the batteries, and was received apparently 
undiminished atthe charcoal points, but did not appear to de- 
t 
not, but the lifting of the coils of the Deflagrator out of the 
id,. immediately reduced the spark, to that which the 
oan alone would affor 
The several instruments being now disjoined, each acted 
y itself, in its own appropriate character. 
. The original experiment of connecting the troughs 
with the Deflagrator only, was now again repeated, and 
with the same result as before; the power of both instru- 
ments was so destroyed, thatonly avery minute spark could be 
seen, and that with difficult 
From these experiments, and those formerly related, the 
Sten conclusions may be drawn :— 
vanic troughs and the Deflagrator. ee 
each other — me be made by any means hithetio d, 
to act in con 
2, The lies does not impede the action of the 
es it allows their energy to pass through itself, but 
contributes nothing to aid their power and cannot be made 
to project its own power through the troughs. 
3. The same fact is true of the Calorimotor in relation to 
the Deflagrator; the powers of these instruments cannot be 
made to pe only the Calorimotor allows a transit to the 
power of the Deflagrator ; but the Deflagrator does not in 
its turn, transmit the power of the Calorimotor. 
. The Calorimotor, severe when connected, at “ip 
with the troughs and with the Deflagrator enables them 
far to unite, that the deflagrator acts through the ecabs, 
