The Introdu@ion to the Second V olume. 
XI 
chad by degrees made me very careful in prefcribing that 
Root for feveral Years, that unlefs the Patients earneftly de- 
fired it, as being their cuftomary Vomit, or their Difeafe re- 
quir’d it more particularly then another Vomit, I pre- 
fcribed it with a little doubt and reluétancy, leaft this bad 
kind fhould be given. When I wascertain, by the feveral 
Circumftances abovemention’d, I defired the Cenfors of the 
College of Phyfitians, and the Wardens of the Company of 
Apothecaries, when they were going upon their fearch to 
take particular care of this Drugg, fo much in ufe and 
adulterated in fo dangerous a Manner. Jat the fame Time 
fhewed them the Difference between the true [pecacuanna- 
Roots, and thofe which refemble them very much and are 
fo likely to do Mifchief, as may appear toany Body who 
will: be at the trouble to compare Pifo and Marcgraves 
Defcription of that Plant, which is only: known yet'to come 
from Brafile, and that of thefe*Apocynums in my Catalogue 
and Hiftory, of which I fhewed them the Samples.or Spect- 
mens, agreeifig with the Draught from ‘Porto Bell, which 1 
likewife fhewed them. I alfo had the falfe, and trie Roots, 
which I likewife compared before them, whereby it ap- 
pear’d, that the true:had a gray Bark, tho’ it varies fomething 
from the Soil in which it grows, «many Rings and Wrinkles, 
or Corrugations going round a String, Nerve, or Pith in 
the Middle, and that there were feveral Fiflures or Cracks 
of the: outward: Bark: quite to the Nerve; and that the 
mealy parts of the Bark and: Nerve were whitifh.. In the 
Root ‘of the Apocynum or -Falfe, the Colour: is dark, 
browner, or of a yellowifh calft,: the Fiffures, «Wrinkles, 
or Corrugations'fewer, and ythe — Bark: of ::the Root 
fmoother: Both thefe Rootsare frequently fo crooked 
arid turned as to ‘make acute ‘angles one part of the Root 
with the other. Upon this occafion notice wasialfo given to 
the Mafter and Wardens. of'-the Company of »Apothe- 
caries. by Letter, and to-theCenfors, that in their; pub- 
lick and private Searches they’ would take care to condemn 
and deftroy fuch a dangerous Root, by which I hope the 
Mifchiefs of Inflamations in the Stomach, Guts, Wc. which 
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