[ 209 ] 
with the real fentiments of the heart. By 
the help of phyfiognomy we are rendered 
capable of analyzing mankind, and afcer- 
taining without being fcarcely ever liable 
/ . 
to errof, their genius and their talents, 
their virtues and their vices. The practi¬ 
tioner, by the different traits and air of 
the countenance of his patients, feizes the 
ftate of the difeafe, and what room there 
may be for hope or defpair. Hofpitals 
and the lick bed are the only fchool in 
which this, I had almoft faid divine, fci- 
ence is attainable, for books only convey 
to the mind very obfcure and imperfedt 
ideas of it. 
The morbific caufe which changes the 
features of the face in a thoufand ftrange 
and extraordinary ways, by determining 
the aCtion of the nerves to the mufcles of 
this part, frequently determines this aCtion 
to other mufcles deftined for the perform¬ 
ance of voluntary motion, and gives rife 
P to 
