
 
		look  at  the  index,  which  barely  points  to  the  authors  whom  he  had  consulted  and  the  
 subjects  which  he  had  investigated.  If,  with  his  vast  accumulation  of  facts,  he was  
 exceedingly  cautious  in  his  generalizations,  and  looked  sometimes  with  a  sort  of  
 amused  distrust  on  the  popular  theories  of  the  hour,  it  should  be  regarded  rather  
 as  a virtue  than  a  failing  in  these  days  of  hasty  inferences  from  very  imperfect  data.  
 He  not  only  visited  every  quarter  of  the  earth,  but  went  through  the  whole  range  
 of  history wherever  it  could  bear  upon  his  subject,  in  quest  of  any  thing  that  might  
 help  him  better  to  understand  “ The  Races  of  Man  and  their  Geographical  Distribution, 
   The  Geographical  Distribution  of Animals  and  Plants, and  The Chronological  
 History  of  Plants.”  The  field  was  vast;  the  laborer  did  not  shrink  from  the work  
 which  it  imposed,  but  engaged  in  it  and  carried  it  on  all  the more  earnestly  on  that  
 account.  The  ripest  fruits  of  his  labors  are  here  placed  before  the  reader. 
 Instead  of  attempting  a  sketch  of  the  author’s  Life,  we  give  below Notices  which  
 appeared  soon  after  his  death  from  persons who  had  seen  him  under  different  circumstances  
 and  in  different  relations.  It  is  hoped  that  the  reader will  excuse  in them  
 a  few  repetitions.  J.  H.  M. 
 [The  following  Notice, written  hy  Rev. J o h n   H.  M o r i s o n ,   was  published  in  the  “ Unitarian  Review,” 
 April,  1S78.] 
 D ie d   in  Boston,  March  17,  of  pneumonia.  Dr.  C h a r l e s   P ic k e r in g ,  a  very  
 remarkable  man,  whose  life  and  uncommon  powers  of  intellectual  labor  and  attainment  
 have  been  employed  among  us  for  the  advancement  of  science  and  the  improvement  
 of  our  race. 
 He  was  the  grandson  of  Colonel  Timothy  Pickering,  a member  of  Washington’s  
 Cabinet,  and  one  of  the most  distinguished  men  of  his  day.  His  father,  Timothy,  
 son  of  Colonel  Pickering,  died  before  he was  thirty  years  of  age.  Charles  was  born  
 in  1805,  and  with  his  brother  Edward  was  brought  up  by  their mother,  Mrs.  Lurena  
 Pickering,  a woman  of  rare  excellence,  and well  fitted  to  fill  the most  responsible  of  
 all  offices  in  the  early  training  of  two  such  sons.  Very  early  Charles  showed  the  
 strong  bent  of  his  mind  towards  natural  history,  and  would  come  home  from  his  
 boyish  excursions  loaded  with  plants,  insects,  birds,  and  quadrupeds.  Lie  was  a  
 member  of  the  class  of  1823  at  Harvard  College,  and  graduated  from  the  Massachusetts  
 Medical  School  in  1826.  He  practised  medicine  several  years  in  Philadelphia, 
   and  while  there  devoted  much  of  his  time  to  the  American  Academy  of  
 Natural  Sciences  of  that  city,  being  an  active  member  of  that  as  of  many  other  
 scientific  societies. 
 In  1838,  Dr.  Pickering was  appointed  Naturalist  of  the  United  States  Exploring  
 Expedition,  under  the  command  of  Charles Wilkes,  U.  S.  N.,  and  sailed  with  the  
 expedition  on  board  the  “ Vincennes.”  This must  have  given  him  grand  opportunities  
 for  extending  his  favorite  studies  on  a  magnificent  scale.  And  these  oppor 
 »•5 
 % 
 tunities  for  original  observation  were  still  further  enlarged  ;  for  soon  after his  return  
 from  this  voyage  on  the  n th   of  October,  1843,  he  left  Boston,  and  visited  Egyi^t,  
 Arabia,  India,  and  the  eastern  part  of  Africa,  for  observation.  After  his  return,  he  
 published,  in  1848,  “ The  Races  of  Man,  and  their  Geographical  Distribution,”  being  
 vol.  ix.  of  the  Exploring  Expedition.  In  1854,  he  had  ready  for  the  press  “ The  
 Geographical  Distribution  of  Animals  and  Plants,”  being  vol.  xv.  of  the  United  
 States  Exploring  Expedition  ;  but,  in  consequence  of  the  slowness  of  our  government  
 in  such  matters,  only  the  first  portion  of  this  work  has  been  printed. 
 The  great work  of  Dr.  Pickering’s  life,  “ The  Chronological  History  of  Plants,”  
 to which  he  had  devoted  sixteen  years  of  laborious  research,  was  only  recently  completed, 
   and  is  now  passing  through  the  press. 
 One  has  only  to  reflect  on  the  titles  of  these  books,  to  see  how  vast  an  extent  of  
 knowledge  was  required  to  give  to  them  the  completeness  at  which  Dr.  Pickering  
 always  and  conscientiously  aimed.  We  are  not  competent  to  judge  of  their merits  ,  
 but we  have  no  doubt  of  the  immense  stores  of  accurate  and  thoroughly  digested  
 information  contained  in  these  volumes.  He  was  himself  a  living  encyclopaedia  of  
 knowledge.  We do  not  suppose that  there was  a more learned  naturalist in  the world,  
 if  there was  indeed  one who  had  made more  extended  and  minute  original  explorations. 
   His mind  was  capacious  enough  to  hold,  and  tenacious  enough  to  keep,  all  the  
 vast  stores  of  knowledge which  he  had  treasured  u p ;  but  no  one  ever  had  less  a  
 passion  or  a  gift  for  display.  He was  the  most  modest  of  men.  Only  those  who  
 knew  him  best,  and who  from  similar  pursuits  could  sympathize with  him,  were  able  
 to  see what  a mine  of  knowledge  he was. 
 His  books  are  on  too  large  a  scale,  and  too  much  crowded with  facts,  ever  to  be  
 popular.  They must  serve  rather  as  vast  storehouses  ;  and  from  them  teachers  and  
 writers  on  natural  history will  draw  the  treasures  which  they may  hold  forth  as  gems  
 or  jewels  to  attract  and  delight  the  popular  mind.  He  had  as  little  the  faculty  of  
 showing  himself  off,  or  making  a  show  of  what  he  knew,  as  any man  that  we  ever  
 have  known.. 
 The  great  and  solid  qualities  of  such  a mind,  and  such  a  character  and  life,  cannot  
 be  too  em-nestly  commended  in  this  age  of  self-seeking, when men  are  so  ingenious  
 and  fertile  in  expedients  to make  a  grand  exhibition  of  their  slender  attainments,  
 like  a  Roman  shop, where  all  the  goods  are  exposed  in  the window. 
 Here was  a  man  of  large  capacity,  of  the  finest  moral  sensibilities,  and  the most  
 perfect  integrity,  engaged  during  a  long  life  in  the  profoundest  studies,  asking  
 neither  fame  nor  money,  nor  any  other  reward,  but  simply  the  privilege  of  gaining  
 knowledge and  storing  it  up  in  convenient  forms  for  the  service  of  others.  He was  
 fortunate  and  happy in his  nearest  relationships, and most  exemplary in all  his  connection  
 and  intercourse with  others.  But  the  love  of  knowledge was  the  one  passion  of  
 his  life.  He  asked  no  richer  satisfaction  than  to  search  for  it  as  for  hidden  treasure. 
 It  is  said  that we  are  a  superficial  people,  and  that  we  are  always  striving  for  
 immediate  effect.  This  is  too  much  the  characteristic  of  our  age,  though  probably