viii PREFACE. 
to the foreign. 4. As a Confequence 
of the lajl, a Difufe of our Simples 
has produced a great Multiplicity of 
Noftrums, the Poffejfors whereof fill 
retain the Ufe of our Plants as great 
Secrets, and often with fuch afonifhing 
SucceJ's as may put the regular and 
fafhionable PraElifers to the Blufh. 
5. From this NcgleEl of our Simples , 
and running into Mixtures of a Scant- 
ling of them with a Number of Exo- 
tics ; or our Fondnefs for Compounds , 
or trujling too much to the Production 
of the Furnaces ; we mu [l be at an 
Uncertainty what to charge their Ef- 
feSls upon , whether they are good or 
bad. 6. This Dependence upon Exo- 
t’cs, too many Compounds , and Chy- 
mical Preparations., in too great a 
Meafure deprives the Poor of the Be- 
lief t of the Gifts of kind Providence, 
to their too frequent Lofs t and often 
Danger ; and not jeldom difables cha- 
ritably difpofed Perfons, of moderate 
Circumfiances, from doing that Ser- 
vice to their poor Neighbours in many 
fighter 
