COLORING  MATTERS  FROM  COAL  TAR. 
39 
would  have  succeeded  more  completely  in  his  expedition.  Should 
Mr.  Markham.  however,  have  taken  his  late  route  in  the  direc- 
tion he  pursued  bj  the  advice  of  Dr.  Weddell,  which  we  have 
heard  was  the  case,  it  must  be  admitted  that  he  could  not  have 
gone  to  higher  quarters  for  advice,  and  acting  on  such  sugges- 
tions, no  blame  can  attach  to  him. 
The  greatest  mistake  of  the  expedition,  however,  was  un- 
doubtedly that  of  the  English  Government,  and  for  which  Mr. 
Markham  was  not  responsible.  This  was,  in  not  directly 
chartering  a  steamer  from  Islay  across  the  Pacific  to  India  for 
the  conveyance  of  the  plants  collected,  instead  of  forwarding 
them  at  first  to  Panama,  thence  across  the  Isthmus,  and  then  by 
way  of  the  West  Indies  to  Southampton,  then,  after  allowing 
them  to  remain  there  for  some  time,  to  ship  them  to  Egypt,  to  be 
from  thence  conveyed  across  the  burning  regions  of  the  Desert 
and  the  Red  Sea,  &c.,  to  one  of  the  ports  on  the  western  shores 
of  India.  Whatever  success  might  have  attended  Mr.  Markham's 
labors,  such  could  not  but  be  seriously  imperilled  by  adopting  such 
an  indirect  and  dangerous  route  for  the  transportation  of  the  plants. 
We  trust,  however^  that  notwithstanding  all  the  difficulties 
and  dangers  to  which  the  Cinchona  plants  have  been,  and  will 
be,  exposed,  that  Mr.  Markham  may  ultimately  be  rewarded  for 
his  exertions,  and  the  trials  which  he  has  undergone  ;  and  that 
in  a  few  years  we  shall  find  the  Cinchonas  thoroughly  established 
over  several  extensive  regions  in  India,  so  that  we  need  no 
longer  have  to  look  forward  with  any  apprehension  to  the  day 
when  our  supplies  of  Cinchona  bark  from  South  America  must 
cease.  We  wish  every  success  to  Mr.  Markham  in  his  present 
journey  to  India,  and  shall  be  glad  to  have  a  favorable  report  of 
his  final  exertions  upon  his  return  to  England — -London 
Pharmaceutical  Journal,  1860, 
ON  THE  PREPARATION  OF  ARTIFICIAL  COLORING  MATTERS 
WITH  THE  PRODUCTS  EXTRACTED  FROM  COAL  TAR. 
By  M.  E.  Kopp  * 
The  dry  distillation  of  organic  matters,  whether  vegetable  or 
animal,  from  the  great  variety  of  products  to  which  it  gives  rise, 
*  Abridged  from  the  Moniteur  Scientifique.  t.  ii,  liv.  86. 
