300 A P P E N.D I X. 
1 8. But in Vacuo there was a remarkable 
“ frothy cold Effervefcence, for the Thermo- 
meter funk one Degree : The Mercury in 
the Gage did not move, more of the Mar- 
chafite was diffolved than in the former Ex- 
periment. 
19. Three Drams of this Spirit of Salt 
with a Dram of red Coral, made a vehe- 
ment frothy Effervefcence 5 its Heat was 
from forty feven to fifty fix Degrees. 
“ 20. The like Mixture in Vacuo made a 
vaft frothing Effervefcence, with the fame 
Degree of Heat as before: The Mercury in 
the Gage fell 57-th Inches, 
21. A like Quantity of Spirit of Sea 
Salt, being poured on a Dram of pounded 
Marble, there was a great frothy continued 
Effervefcence, the Heat of which was from 
forty feven to fifty feven Degrees. 
‘‘ 21. The like Mixture in Vacuo made a 
vafl: Effervefcence, which was foon over ; 
but its Heat was only from forty feven to 
fifty two Degrees. The Mercury in the 
Gage defeended 3 4 Inches, by reafon of the 
‘‘ elaftic Matter which was generated in the 
Receiver. 
23. A 
