Am.  Jour.  Pharm.  \ 
November,  1909.  / 
Charles  Darwin. 
515 
where  new-comers  are  seldom  seen,  and  where  the  names  occurring 
in  the  old  church  registers  are  still  borne  by  the  villagers."  This 
quiet  rural  retreat  was  destined  to  be  his  home  for  a  period  of 
40  years,  or  until  his  death  in  1882.  His  literary  activity  during 
the  intervening  years  may  here  briefly  be  indicated,  some  of  the 
following  works  having  been  published  in  several  editions : 
1842.  The  Structure  and  Distribution  of  Coral  Reefs;  being  Part  I 
of  the  Geology  of  the  Voyage  of  the  Beagle, 
1844.  Geological  Observations  on  the  Volcanic  Islands  visited  dur- 
ing the  Voyage  of  H.  M.  S.  Beagle;  being  Part  II  of  the 
Geology  of  the  Voyage  of  the  Beagle. 
1845.  Publication  of  the  Journal  of  Researches  as  a  separate  book. 
1846.  Geological  Observations  on  South  America;  being  Part  III 
of  the  Geology  of  the  Voyage  of  the  Beagle. 
185 1.  Monograph  of  the  Fossil  Lepadidce  and  Monograph  of  the 
sub-class  Cirripedia  (Barnacles). 
1854.  Monographs  of  the  Balanidce  and  V  errucidce. 
1858.  Joint  paper  by  Charles  Darwin  and  Alfred  Russel  Wallace 
"  On  the  tendency  of  species  to  form  varieties ;  and  on 
the  perpetuation  of  varieties  and  species  by  natural  means 
of  selection,"  communicated  to  the  Linnean  Society  by  Sir 
Charles  Lyell  and  Sir  Joseph  Hooker  (read  July  1). 
1859.  Publication  of  "  The  Origin  of  Species."    This  was  referred 
to  by  Huxley,  in  1887,  as  "  the  most  potent  instrument  for 
the  extension  of  the  realm  of  natural  knowledge  since  the 
publication  of  Newton's  '  Principia.'  " 
1860.  Publication  of  a  Naturalist's  Voyage. 
1862.  A  book  On  the  various  contrivances  by  which  Orchids  are 
fertilised  by  Insects. 
1865.  A  paper  read  before  the  Linnean  Society  "  On  the  Move- 
ments and  habits  of  Climbing  Plants."  (Published  as  a 
book  in  1875.) 
1868.  Variation  of  Animals  and  Plants  under  Domestication. 
1 87 1.  The  Descent  of  Man. 
1872.  The  Expression  of  the  Emotions  in  Man  and  Animals. 
1875.  Insectivorous  Plants. 
1876.  The  Effects  of  Cross  and  Self-fertilisation. 
1877.  The  Different  Forms  of  Flowers  on  Plants  of  the  same 
Species, 
