( 33 § ) 
faline Particles hovering in that Atmo^ 
fphere. 
CorolL i . Since the Cold Bath ads by a 
Prejfure added to that of the Air, which 
Preflure is one of the Properties by which 
it is of fo much Service to our Bodies, then 
the deeper the Immerlion, the greater the 
Preflure, and the greater is the Profit reap’d 
by it. But fince a Body dipp’d three Foot 
and an half under Water, when the Mer- 
cury ftands at or a little below 28, fuftains 
only a Preflure equal to that of the Atmo- 
fphere when the Mercury Hands at 31. 
Then difeafed Perfons, which exped Re- 
lief from this Weight of the Water, fhould 
dive deeper as the Mercury falls in the 
Tube. 
CorolL 2. Since the Prejjure of the Wa- 
ter is of fo great Ufe, bathing in the Sea y 
is more ufeful than bathing in common 
Water ; for by letting the Perfon down 
out of a Boat, he may be immerfed fix, 
eight, or ten Foot deep ; that is, he may 
be made to fuftain a Weight of Water ad- 
ded to that of the Air, from 68401b. to 
12003 lb. Weight, or ftill more if wanted; 
then we muft not forget that the Salt in 
this Vehicle, as we have found it, even in 
a 
