TRAVELLING, See. 5 
the prefent occafion, nor to the office i am going 
to enter into, nor to that employment which i 
was lately engaged in by the will, and fuffrage 
of the high, and mighty Hates of this king- 
dom 5 and from which i am now once again 
brought back to this feat of the mufes. Nay 
fo far is the fubjedt, i am about to treat on, 
from being unfuitable to any of thefe circum- 
ftances, that it feems xp me particularly adapt- 
ed to every one of thfem. The fubjedt is con- 
cerning the neceffity of travelling in one ? s own 
jcountrey, and the advantages that may thence 
accrue, efpecially to phyficians. I ffiall treat 
it in a plain and popular manner ^ and endea- 
vor to manage it fo, that the meannefs of my 
language may be compenfated by the dignity 
of the matter, and the brevity of my ex^ 
preffions. 
All human knowledge is built on two foun- 
dations > reafon and experience.— Thefe two 
joyned together are neceffary to make a good 
phyfician. 
We muft confefs indeed, that the bufinefs of 
reafoning may be carried on with equal fuccefs 
in our clofets, as in travelling, fuppoling we 
have an opportunity of converfing with men 
truly learned. 
b 3 
But 
