494  Wfirn&  (Am.  Jour.  Pharm. 
na/OS.  j     August,  1884. 
Professor  Fliiekiger,  with  whom  I  had  corresponded  upon  the  sub- 
ject, informed  me  (July  12,  1881)  that  though  he  at  first  objected  to 
Flemingia  as  the  source  of  "waras"  he  then  thought  the  statement 
correct. 
As  the  Kew  Museum  contained  no  satisfactory  specimens  of  either 
African  or  Arabian  "  waras,"  we  applied  to  the  Resident  at  Aden  to 
kindly  assist  us  in  procuring  samples.  These  reached  England  in 
July  of  last  year.  In  both  cases  the  "  waras  "  itself  agreed  micros- 
copically with  an  authentic  sample  derived  from  Professor  Fliiekiger, 
and  had  the  structure  figured  by  Mr.  Kirkby.  All  three  also  exhibited 
the  characteristic  property  of  turning  first  bright  red,  then  black,  when 
carefully  heated  in  small  quantity  on  a  glass  slip  over  the  flame  of  a 
spirit  lamp. 
The  sample  of  Somali  "waras"  was  mixed  with  seeds  of  a  dull 
brown  color  mottled  with  black.  These  were  found  to  agree  precisely 
with  the  seeds  of  Flemingia  rhodocarpa,  Bak.,  from  the  Mozambique, 
which,  as  mentioned  in  the  "  Kew  Report "  (I.  c.)  "  has  its  pods  covered 
with  a  bright  red  resinous  pubescence."  A  further  scrutiny  of  the 
original  specimen  obtained  by  Captain  Hunter  from  the  neighborhood 
of  Aden,  which  is  in  a  rather  immature  state,  led  Professor  Oliver  to 
the  conclusion  that  this  also  belonged  to  Flemingia  rhodocarpa.  I 
believe  that  the  drug  is  derived  from  the  young  pods,  and  am  disposed, 
therefore,  to  think  that  Dr.  Dymock  is  in  error  in  describing  it  as  "the 
gland  of  the  leaf." 
I  communicated  these  further  facts  to  Professor  Fliiekiger,  and  he 
wrote  to  me,  October  4,  1883,  "I  am  very  much  pleased  with  your 
statements,  and  can  only  say  that  I  most  fully  agree  with  your  con- 
clusion as  to  the  identity  of  the  Somali  "  waras "  with  my  original 
specimen  and  also  that  of  the  seed  of  Flemingia,  rhodocarpa  with  those 
met  with  in  the  said  drug." 
In  the  new  "  Official  Guide  to  the  Museums  of  Economic  Botany 
at  Kew  "  (Xo.  1,  p.  45)  we  accordingly  state  that  "  waras  .  .  .  consists 
of  the  epidermic  glands  of  the  young  pods  of  Flemingia  rhodocarpa, 
Baker  ;  native  of  Arabia  and  East  Tropical  Africa." 
The  third  variety  described  by  Mr.  Kirkby  is  quite  new  to  me,  and 
I  join  with  him  in  hoping  that  some  further  information  about  the 
plant  yielding  it  will  soon  be  forthcoming. 
A  further  most  interesting  communication  on  the  subject  from  Major 
F.  M.  Hunter,  Assistant  Resident  at  Aden,  contained  a  memorandum 
