[ 6i ] 
Mouth. Thus we fee howready Nature is, upon any 
Emergency, to lay hold of every Occafion for Self- 
prefervation. 
But when a Perfon is frighted, fo as not to be 
under an inflantaneous Apprehenfion of Danger, by 
being purfued, or the like 5 then the upper Part of 
the Face will be as in this Figure, and the lower 
fomewhat different from what it appears here 5 that 
is, the Mouth will open moderately, by the Remif- 
lion of the A&ions of the Temporal and Maffeter 
Mufcles, having the Corners, or Ritfus Oris , in- 
clin'd a little downwards. 
It has been imagin’d, that the Eye-brows might 
be moved in Parts 5 that is, that one Part of a Brow 
may be pull'd up, while the other is pull'd down : 
But this cannot be, for the Occipito-Frontalis , which 
pulls up the Brow, ads all at once on either Side; 
fo that the intire Brow mult be pull'd up at once, or, 
by its Remiffion, let down at once. I never yet 
faw any one, who was able to give them this par- 
tial Motion, and there are but few who can raife 
either without the other at the fame time ; fo that 
this Opinion amounts to fomething Nature never in- 
tended, and is an Exaggeration which renders any 
Figures prepofterous. 
Fear , Horror * and Terror y are but Terms which 
lignify the fame Paffion, only in different Degrees ; 
and are ail exprefled by this Figure, only rendering 
the Change of Features, by the Motion of the Muf- 
cles, greater or lefs ; which, if accompanied with 
certain A&ions of the Body, would exprefs them 
more abfolutely. As for Example 5 if on the Ground, 
under an Enemy refolved on the Deftrudion of the 
frighted 
