Ors f 
we 
AN 
a coo 0 we 
os OF THE 
INFRODUCTION of FOXGLOVE 
Into 
MODERN PRACTICE. 
a the more obvious and fenfible properties of 
plants, fuch as colour, tafte, and fmell, have 
but little connexion with the difeafes they are adapted 
to cure; fo their peculiar qualities have no certain 
dependence upon their external configuration. ‘Their 
chemical examination by fire, after an immenfe 
wafte of time and labour, having been found ufe- 
lefs, is now abandoned by general confent.  Poffi- 
bly other modes of analyfis will be found out, 
which may turn to better account; but we have hi- 
therto made only a very {mall progrefs in the che- 
miftry of animal and vegetable fubftances. Their 
virtues muft therefore be learnt, either from obferv= 
in. their effects upon infects and quadrupeds; from 
| , deduced from the already known — 
of raat of their congenera, or from oes on copies 
ee ea 
PR SE OE Ff eed 
_ -matural fyftem:; but the sah ea ee retin tie | 
