Am.  Jo"r.  Pharm.  ( 
Jtia.,  1882.  j 
Red  Bnrl: 
only  be  made  seTvieeable  by  'renewing''',  otherwise  the  oxidizing  process 
goes  forward  to  the  ultimate  destruction  in  old  trees  of  almost  all  the  alka- 
loids." 
In  the  same  report  I  have  particularly  contrasted  with  the  above  Mr. 
■Cross'  No.  18  (E),  as  follows  : 
"Under  No.  18  I  find  valuable  information.  This  is  called  'Red  Bark/ 
but  is,  indeed,  not  Red  Bark  at  all,  but,  as  described  by  the  Spanish 
botanists,  'cinnamon-colored  bark'  {acanelada).  According  to  these 
authorities,  when  the  trunk  is  wounded  a  clear  juice  flows  out,  which 
changes  to  i\  golden  color.''''  (See  my  "Nueva  Quinologia,"  under  head  of 
C.  coccinea,  rulgo  eaacarilla  serrana  acanelada^  y  Pata  de  Ocdlincizo.) 
"  Truncis  incisis,  sicecnni  erysitaUinum  exudant,,^  'po^teaqiie  in  aureiim 
colorem  convertitur. 
"Under  similar  circumstances  the  C.  mieciruhra  yields  a  milky  juice, 
which  changes  to  an  intensely  red  color.  .  .  .  It  is  rightly  named  by 
■Cross,  Pata  de,  GfalUnazo.'''' 
I  published  information  on  both  these  barks  in  18(32,  and  my  work  was 
sent  out  b}'  the  government  to,  I  suppose,  all  the  stations  ;  but  apparently- 
we  have  these  two  species  still  united  under  the  designation  of  C.  sued- 
rubra.  I  know  not  to  what  extent  the  species  prevails  in  India,  but  it  is 
satisfactory  to  believe  that  it  is  a  much  better  sort  for  cultiv^ation  than  that 
with  which  it  is  confounded,  as  is  shown  by  the  following  analysis  of  (E): 
Quinine  2*27  per  ceiit.=quinine  sulphate  8-03  per  cent.  Ciiichonidine 
S'21  per  cent.   Cinehoniiie  3*17  per  cent.   Amorphous  alkaloid  '98  per  cent. 
But  we  have  not  only  two  but  three  species  confounded  under  the  head- 
ing of  C.  succirubra,  as  I  have  convinced  myself  hy  comparing  together 
the  specimens  which  I  send,  together  with  information  from  Mr.  R. 
Spruce,  the  collector  of  the  seeds  for  India,  also  from  the  late  Mr.  Mclvor, 
and  from  examination  of  specimens  of  bark  from  India,  and  also  quite 
recently  from  St.  Thomas. 
This  is  the  cuchwara  or  "jjig's  skin  sort  "  of  Red  Bark,  little  valued  in 
commerce  of  old,  the  appearance  being  against  it,  but  apparently  of  greater 
value  than  the  true  Red  Bari^:  as  regards  contents  m  alkaloid.  See  speci- 
men (F)  and  analysis. 
Analysis  of  Bark  from  St.  2Viom<(s. 
(^niiwirie  sulpli-  Quinine.  Cinclionidinc        Ciiicluuiine.  Ainorj)!!. 
Percent.  I'er  ceitt.  J'er  cent.  Per  cent.  Percent. 
Large  quills,  2-8()  2-14  3»2B  2-49  '89 
Medium  quills,  2-31  1-73  3  1(i  2*28  '\)\ 
Small  quills,  1-83  1-37  2-00  1-34  l-(ll) 
I  will  give  in  an  Appendix  the  remarks  written  by  Mr.  Spruce  himself 
on  inspection  of  the  C.  erjjthrantha  of  Pa  von  (as  represented  in  my  ilhis- 
trations  of  the  "Nueva  Quinologia"),  which  he  says  is  probably  true 
cuchicara. 
According  to  Spruce,  the  eonglomerata  and  unt bell ul if e r( f  oi'  ilw 
"  Nueva  (Quinologia  "  are  probably  allied  s})ecies. 
The  propagation  of  so  many  millions  of  trees  of  what  is  called  C.  succi- 
rvbra  in  India,  against  all  <'autions  and  in  neglect  of  all  the  information  I 
have  been  able  to  reproduce  from  the  careful  Spanish  botanists,  imi)resses 
