﻿RIVERS 
  AS 
  FACTORS 
  IN 
  ANIMAL 
  DISTRIBUTION. 
  187 
  

  

  I 
  

  

  some 
  eighteen 
  or 
  twenty 
  yards 
  from 
  bank 
  to 
  bank.* 
  The 
  Mole 
  

   has 
  also 
  been 
  described 
  as 
  swimming 
  across 
  a 
  Broadland 
  river, 
  

   "its 
  little 
  pink 
  snout 
  raised 
  just 
  above 
  the 
  surface. 
  "t 
  Mr. 
  

   Emerson, 
  another 
  Broadland 
  observer, 
  states 
  that 
  "Marsh-mice 
  

   can 
  swim 
  ; 
  and, 
  as 
  the 
  Water- 
  Vole 
  swims 
  faster 
  than 
  a 
  Rat, 
  so 
  

   the 
  Marsh- 
  Vole 
  swims 
  faster 
  than 
  a 
  Field 
  -Mouse. 
  Pike 
  and 
  

   Herons 
  sometimes 
  take 
  them 
  on 
  their 
  journeys 
  to 
  and 
  fro 
  

   'athwart 
  the 
  deeks.'"t 
  According 
  to 
  Brehm, 
  in 
  Siberia 
  

   migratory 
  Squirrels 
  found 
  the 
  rushing 
  Tchussoveia 
  no 
  obstacle, 
  

   for 
  all 
  that 
  reached 
  the 
  bank 
  of 
  that 
  rapid 
  mountain 
  river 
  

   plunged 
  without 
  hesitation 
  into 
  its 
  whirling 
  and 
  seething 
  waters, 
  

   and 
  swam 
  deeply 
  sunk 
  and 
  with 
  their 
  tails 
  laid 
  across 
  their 
  

   backs 
  to 
  the 
  opposite 
  bank.§ 
  Lemmings 
  " 
  swim 
  across 
  rivers, 
  

   and 
  even 
  across 
  broad 
  lakes, 
  arms 
  of 
  the 
  sea, 
  and 
  fjords. 
  "|| 
  

   Campbell 
  says 
  "they 
  swim 
  rivers, 
  and 
  Trout 
  eat 
  them, 
  for 
  I 
  

   have 
  several 
  times 
  cut 
  freshly- 
  swallowed 
  'Lemens' 
  and 
  Mice 
  out 
  

   of 
  Trout 
  which 
  took 
  my 
  flies 
  in 
  the 
  Alten."H 
  

  

  farrell 
  has 
  recorded 
  having 
  seen 
  a 
  Hare 
  voluntarily 
  take 
  to 
  

   the 
  water, 
  and 
  swim 
  across 
  a 
  harbour 
  a 
  mile 
  wide.** 
  Emerson 
  

   writes 
  that 
  Hares 
  take 
  to 
  the 
  sea 
  if 
  pressed, 
  as 
  also 
  to 
  the 
  broads 
  

   and 
  rivers, 
  when 
  the 
  harriers 
  are 
  close 
  upon 
  them. 
  ft 
  Jesse 
  

   relates, 
  on 
  the 
  authority 
  of 
  an 
  angling 
  friend 
  for 
  whose 
  accuracy 
  

   he 
  can 
  vouch, 
  that 
  one 
  morning 
  while 
  angling 
  for 
  Trout 
  he 
  sud- 
  

   denly 
  heard 
  a 
  great 
  splash, 
  and 
  found 
  it 
  was 
  caused 
  by 
  a 
  Hare 
  

   which 
  had 
  jumped 
  from 
  the 
  bank 
  to 
  swim 
  the 
  river. 
  Mr. 
  Mar- 
  

   shall, 
  the 
  angler, 
  threw 
  his 
  fly 
  over 
  her, 
  hooked 
  her 
  on 
  the 
  fur 
  

   of 
  her 
  back, 
  and 
  comfortably 
  landed 
  her.|| 
  Mr. 
  Lydekker 
  has 
  

   even 
  seen 
  a 
  Common 
  Babbit 
  (Lepus 
  cuniculus), 
  when 
  startled 
  by 
  

   his 
  Dog 
  on 
  the 
  margin 
  of 
  a 
  river, 
  plunge 
  into 
  the 
  water, 
  and 
  reach 
  

   the 
  opposite 
  bank 
  in 
  safety. 
  §§ 
  

  

  * 
  Max 
  Peacock, 
  ' 
  The 
  Naturalist,' 
  1901, 
  p. 
  44. 
  

  

  f 
  W. 
  A. 
  Dutt, 
  ' 
  The 
  Norfolk 
  Broads,' 
  p. 
  127. 
  

  

  | 
  ' 
  Birds, 
  Beasts, 
  and 
  Fishes 
  of 
  the 
  Norfolk 
  Broadland,' 
  p. 
  331. 
  

  

  § 
  ' 
  From 
  North 
  Pole 
  to 
  Equator,' 
  p. 
  254. 
  

  

  || 
  Ibid. 
  p. 
  255. 
  

  

  If 
  ' 
  Frost 
  and 
  Fire,' 
  vol. 
  i. 
  p. 
  271. 
  

  

  ** 
  Loudon's 
  Mag. 
  Nat. 
  Hist.' 
  vol. 
  v. 
  p. 
  99. 
  

  

  ft 
  'Birds, 
  Beasts, 
  and 
  Fishes 
  of 
  the 
  Norfolk 
  Broadland,' 
  p. 
  329. 
  

  

  || 
  ' 
  An 
  Angler's 
  Bambles,' 
  p. 
  19. 
  

  

  §§ 
  ' 
  Roy. 
  Nat. 
  Hist.' 
  vol. 
  iii. 
  p. 
  198.— 
  R. 
  L. 
  Stevenson, 
  in 
  the 
  South 
  Sea 
  

  

  