300 TlMEHRI. 
seeds of Cacoucia coccinea have the reputation of keep- 
ing bats from houses, and are said to be poisonous, but 
in the absence of evidence I doubt this ; they however 
deserve examination. To enumerate the different 
medicinal barks of British Guiana used by the Indians, 
would be only giving a list of native names, with no 
clue to their sources, without which, such a catalogue 
is of little benefit. The great majority deserve investiga* 
tion but before this is done, dried specimens of flowers, 
leaves and fruits, should be procured. These have been 
asked for at every Local Exhibition, but none have been 
forthcoming. 
Cinchona has been often mentioned in connection 
with Guiana, and many persons are under the impression 
that some of the quinine-bearing species grows here. 
This is a mistake ; no true Cinchona has been discovered 
in either of the Guianas, although special expeditions 
have been sent to the interior of Cayenne for the 
purpose. 
