
 
		diftions  of  various  authors  reconciled,  but  many  new  fubje£Js  
 have been  added, rendering  it a valuable work. 
 There  have been  many authors who,  from time  to  time,  have  
 treated on Birds,  and many different  fyliems  have  anfen  in  con-  
 fequence  of their  labours ;  but  it  is  much  to  be lamented,  that  
 fcarce  any  two  agree  in  the  fame  opinion. 
 The  great R a y ,   our  countryman,  may juftly  be  effieemed  the  
 firft  author of Syftem;  and it is  to  him we are  indebted  for  the valuable  
 Ornithology  of  Francis  m U u g h b y ,^   which  though  
 publifhed  fo far back as  1678  *,  is  yet reckoned  the  beft  general  
 work  of its  kind  in  the Englifh  language. 
 A  whole volume would fcarce  fuffice  to  give  an  account of the  
 various writers in Ornithology, and their works in every languages  
 but  this is  not meant  to be a  part pf our  undertaking,  and  is  indeed  
 quite  unneceffary,  as we  mean  to  draw  matenals  for  our  
 pTrpofe  from  authors  of  the  beft  credit  only; 
 L y   of them  for their  attempt  to communicate  the knowledge of  
 the  ao-e  they  lived  in,  as  we  may  juftly  fuppofe  it was  we  -  
 ceived in  their days;  and  no doubt but the time will  come  when  
 our prefent notions of things will  be held  as  cheap by ourfuccet  
 fors, as thofe of the century paft are by  the prefent  age.  We will  
 therefore pafs over even  the  names  of all  here,  except  the one  to  
 whom  all future  writers  on Natural Hiftory muft  feel  themfelves 
 ,   The feft edition waain  the Latin tongue,  in  1676,  but not tranflated into 
 Engliih till two years  after.  in d eb ted ; 
 P R E F A C E . 
 indebted;  I  mean,  the  ever-memorable  and  great Sir C harles  
 L innaeus,  who  at  one view  has  drawn  together,  as  it  were,  all  
 Nature  and  her  produftions,  in  his  Syftema Nature.  This  work  
 has  brought  down  our  fubjeft,  among  the  reft,  through  twelve  
 editions,  as  far  as  the  year  ly h y f.  In  this undertaking,'his  aim  
 has-been concifenefs;  but  in gaining  this,  he has  loft  fight,  I  fear,  
 o ffujficient  inftruftion;  having done  little more than  pointed out  
 where  fuch inftruftion may  be  found. 
 His  arrangement of Birds is,  in  general,  approved  of,  and  his*  
 divifion  into Genera fcarcely  to  be  altered for  the  better;  but  as  
 it  is  now  fome  years  fince  he wrote, many  new lights  have been  
 thrown  on Natural  Hiftory,  fufficient  to  excufe  future  writers,  if  
 in  fome  few  inftances,  at  leaft,  they  fhould  differ  from  him;  
 which will  be  the cafe in  the work now before us. 
 There is  one  thing  in  Limueus's  arrangement  of  Birds,  which,  
 I muft  confefs,  has ever  appeared  to  me  unaccountable,  and  in  
 which  he  differs  from R ay  at  his  firft  fetting out.  Mr.  Ray  divided  
 all Birds  into two  grand  divifions;  viz.  Firft, Thofe which  
 frequent  the  land:  Secondly,  Thofe which  frequent  the water :  
 but Limueus feparates  the  Land Birds  into  two  parts,  and  thrufts  
 in  the Water  Birds  between.  This  is  .certainly  unnatural,  and  
 therefore will  not  be  admitted  in  the prefent undertaking. 
 The  bafis  then  of  this  work will  be  on  the  prime  divifion of  
 Ray;  but we fhall adhere  to the Linntean  Genera,  except  in  a very 
 ■ j-  In  the  MantiJJa Plantarum, publilhed  in  1771»  will  be  founds  a few  more  
 Birds defcribed at the end 5  but  thefe are only twenty in number. 
 a  2 few