﻿140 
  Recently 
  publislied 
  Ornithological 
  Works. 
  

  

  the 
  Nearctic 
  Region, 
  There 
  is 
  no 
  such 
  region 
  at 
  all 
  ! 
  North 
  

   America 
  is 
  divisible^ 
  according 
  to 
  its 
  Mammal-life 
  at 
  all 
  

   events^ 
  into 
  three 
  regions 
  : 
  — 
  (1) 
  The 
  Boreal^ 
  which 
  extends 
  

   also 
  over 
  Northern 
  Europe 
  and 
  Asia, 
  and 
  is 
  circumpolar; 
  

   (2) 
  The 
  Sonoran, 
  or 
  Mexican 
  Table-land 
  Region^ 
  which 
  is 
  

   '' 
  unique 
  ''; 
  and 
  (3) 
  a 
  Tropical 
  Region, 
  which 
  belongs 
  to 
  

   South 
  America. 
  This 
  scheme 
  of 
  division 
  is 
  clearly 
  set 
  forth 
  

   in 
  well-ordered 
  paragraphs 
  and 
  illustrated 
  by 
  an 
  excellent 
  

   " 
  Bio-geographic 
  Map/' 
  To 
  this 
  we 
  will 
  reply 
  shortly. 
  

   In 
  the 
  extreme 
  north, 
  no 
  doubt, 
  the 
  Nearctic 
  Region 
  in 
  its 
  

   phase 
  of 
  life 
  closely 
  approximates, 
  as 
  it 
  does 
  geographically, 
  

   to 
  the 
  Palaearctic. 
  Where 
  two 
  great 
  regions 
  join 
  by 
  land 
  

   it 
  is 
  not 
  possible 
  to 
  draw 
  a 
  definite 
  boundary 
  between 
  them. 
  

   But 
  what 
  Dr. 
  Merriam 
  calls 
  the 
  '' 
  Sonoran 
  " 
  is 
  the 
  true 
  

   autochthonic 
  portion 
  of 
  the 
  Nearctic 
  Region. 
  Here 
  is 
  the 
  

   original 
  home 
  of 
  the 
  Mniotiltidse, 
  the 
  Vireonidae, 
  and 
  other 
  

   forms, 
  the 
  possession 
  of 
  which 
  at 
  once 
  separates 
  it 
  from 
  

   the 
  Palaearctic 
  Region. 
  As 
  regards 
  the 
  proposed 
  new 
  

   subdivision 
  of 
  the 
  Nearctic 
  Region 
  into 
  two 
  subregions 
  

   ('^Boreal" 
  and 
  '^ 
  Sonoran^') 
  instead 
  of 
  three 
  ('' 
  Eastern 
  '' 
  

   '' 
  Central,-' 
  •* 
  and 
  '^^ 
  Western") 
  as 
  heretofore 
  generally 
  used, 
  

   we 
  have 
  little 
  doubt 
  that 
  Dr. 
  Merriam 
  is 
  right 
  in 
  the 
  main, 
  

   and 
  that 
  in 
  this 
  point 
  the 
  birds, 
  when 
  carefully 
  studied, 
  

   will 
  be 
  found 
  to 
  conform 
  to 
  the 
  same 
  law 
  as 
  he 
  has 
  shown 
  

   to 
  prevail 
  in 
  the 
  case 
  of 
  the 
  Mammals. 
  

  

  32. 
  Meyer 
  on 
  Birds 
  from 
  Kaiser-Wilhelms-Land. 
  

  

  [Beitrag 
  zur 
  Kenutuiss 
  der 
  Vogelfauna 
  voii 
  Kaiser-Wilhelms-Land. 
  

   Von 
  A. 
  B. 
  Meyer. 
  J. 
  f. 
  0. 
  1892, 
  p. 
  254.] 
  

  

  Dr. 
  Meyer's 
  fourth 
  contribution 
  to 
  our 
  knowledge 
  of 
  the 
  

   Avifauna 
  of 
  German 
  New 
  Guinea^^ 
  is 
  based 
  on 
  some 
  

   collections 
  made 
  by 
  the 
  brothers 
  Geisler 
  at 
  several 
  localities, 
  

   mostly 
  on 
  the 
  coast. 
  The 
  specimens 
  are 
  referred 
  to 
  33 
  

   species 
  and 
  subspecies, 
  of 
  which 
  are 
  described 
  as 
  new 
  Eupetes 
  

   geislerorum, 
  Diphyllodes 
  clirysoptei-a 
  septentrionalis, 
  and 
  

   Ptilopus 
  coronulatus 
  huonensis. 
  

  

  * 
  For 
  the 
  preceding 
  articles 
  see 
  (1) 
  Zeitschr. 
  f. 
  d. 
  ges. 
  Orn. 
  1886, 
  p. 
  30; 
  

   (2) 
  Ibis, 
  1890, 
  p. 
  412 
  ; 
  and 
  (3) 
  Abh. 
  k. 
  zool. 
  Mus. 
  Dresden, 
  1890-1,, 
  no. 
  4. 
  

  

  