ON  HOWARD IA  FEBRIFUGA. 
447 
12th.  Aconite  and  aconitine  exert  a  strongly  depressing  action 
on  the  heart  and  on  the  large  vessels,  either  immediately  or 
following  a  short  acceleration  of  the  movement  of  the  heart. 
This  effect  is  continued,  and  differs  consequently  from  that  ob- 
served from  atropiaand  daturia,  which,  given  in  doses  larger  than 
aconitia,  causes  an  acceleration  of  the  pulse  much  beyond  the 
normal  state,  but  preceded  by  a  short  slackening  Repertoire  de 
Pharmacie,  Aout,  1854. 
ON  HOWARDIA  FEBRIFUGA. 
Br  H.  A.  Weddell. 
Among  the  genera  published  in  the  monograph  of  Cinchonas, 
there  was  one,  to  which,  by  mistake,  I  applied  a  name  belonging 
to  a  plant  of  a  different  family.  To  avoid  this  reduplication,  I 
have  attached  a  new  name  to  my  plant,  and  have,  as  it  appears 
to  me,  done  but  an  act  of  justice  to  an  excellent  quinogist,  who 
has  published  in  England,  a  judicious  and  profound  treatise  on  the 
Cinchonas,  collected  by  Jose"  Pavon  and  devised  by  Lambers  to 
the  British  Museum. 
I  propose  then  that  the  genus  described  by  me,  under  the  name 
of  Chrysoxylon,  should  now  bear  that  of  Hoivardia,  in  honor  of 
Mr.  J.  Elliot  Howard. 
I  collected  the  specimens  which  form  the  foundation  of  this 
genus,  in  the  Bolivian  province  of  the  Cordillera,  during  my 
journey  from  Santa  Cruz  to  the  Sierra  Tarija.  While  search- 
ing for  the  trees  producing  the  Cinchona  barks,  the  curate  of 
Gutierres,  capital  of  that  province,  offered  to  show  me  one  of 
these  plants,  which,  he  told  me,  grew  in  the  neighboring  forest. 
I  followed  him  with  eagerness,  and  we  soon  reached  the  place 
where  he  supposed  he  had  seen  it,  but  it  was  not  to  be  found. 
I  pointed  out  to  him  a  tree  of  the  same  family  as  the  Cinchona, 
as  perhaps  the  one  meant,  which  conjecture  was  soon  verified,  by 
his  expression  of  astonishment  at  my  art  of  divination.  The 
tree  had  unfortunately,  some  time  since,  lost  its  flowers  ;  its 
fructification  was  at  the  same  time  so  far  advanced,  that  I  could 
collect  some  aborted  seed  only,  which  led  me  into  error  as  to  the 
tribe  to  which  the  plant  belonged. 
A  more  recent  examination  of  the  subject,  by  calling  my  at- 
