( 358 ) 
In the general, the colder the Bath, the 
lefs Time muft we ftay in it, and we ought 
to begin and leave off with the fhorteft 
Time and lhallowefl; Immerfion in it, that 
both PrelTure and Contraction may be gra- 
dually encreafed and decreafed. As to the 
Time, from two to fix or feven Minutes is 
fufiicient in a very cold Bath ; but this 
muft be adapted to the Conftitution. As 
to Depth, from one Foot to five is enough, 
for if too deep, the Preflure may be too 
great and fudden, and throw the Blood in 
too great and quick Surges upon the Vif- 
cera of the Head, Breaft, and Belly, and 
endanger the Breach of 1'orne of the Vef- 
fels, efpecially if either weak or diftended 
before. If too fhallow, there is not Weight 
enough of Water, the Repulfion of Blood 
from the Circumference to the Centre, will 
not be powerful enough to anfwer the De- 
fign, Expectation, and Necefiity of the 
Bathers ; for whether the Prefiure of Wa- 
ter on the Body’s Surface be equal to 34000, 
or near 400001b. Weight, either of them 
will not allow of an additional Preflure or 
Contraction from cold Water, to fuch 
whofe Veflels are full of fiery faline Blood, 
from immoderately fwallowing down hot. 
