[ 3"0 ] 
colled; that there are fome fpecies of' , 
phthifis, in which the lungs or other vifcera 
are not ulcerated or otherwife difeafed, and 
that in other cafes, although the lungs are 
very evidently attacked, and hedic fever 
prevails, along with a copious fpitting of 
purulent matter, yet the patients preferve 
their corpulence to the laft. We may 
like wife farther obferve, that the paffions 
of the mind develope this difeafe in fub- 
jeds predifpofed to it, and that they ex- 
afperate the complaint very confiderably 
when it has once made its appearance: 
that the ftimuli which call forth the ner¬ 
vous power, or which change the exifting 
- difpofition of this fyftem, become proper 
means for fufpending the progrefs of 
phthifis, and fometimes for curing it 
entirely: Macinefs, pregnancy, wounds, 
and eruptions have frequently produced 
thofe lingular effeds. Laftly, it has been 
proved, that riding on horfeback, an adive 
