﻿(ESTROUS 
  CYCLE 
  IN 
  THE 
  COMMON 
  FEREET. 
  343 
  

  

  a 
  range 
  of 
  some 
  ten 
  months, 
  and 
  yet 
  tliat 
  tlie 
  young 
  are 
  

   always 
  born 
  within 
  a 
  season 
  limited 
  to 
  about 
  six 
  weeks; 
  " 
  in 
  

   other 
  words, 
  the 
  gestation 
  period 
  of 
  the 
  badger 
  may 
  be 
  

   anything 
  between 
  under 
  five 
  and 
  over 
  fifteen 
  months. 
  (See 
  

   above, 
  page 
  326, 
  where 
  Meade- 
  Waldo's 
  paper 
  is 
  referred 
  to.) 
  

  

  References 
  to 
  Literature. 
  

   Bell. 
  — 
  'A 
  History 
  of 
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  Quadrupeds,' 
  2nd 
  edition, 
  London, 
  1874. 
  

  

  BiJHLER. 
  — 
  "K-iickbildung 
  der 
  EifoUikel 
  bei 
  Wirbelthieren," 
  ' 
  Morpliol. 
  Jahr.,' 
  

  

  vol. 
  XXX, 
  1902. 
  

   Caunegie 
  and 
  other 
  authorities, 
  — 
  'Ferrets 
  and 
  Ferreting,' 
  3rd 
  edition, 
  

  

  London, 
  1902. 
  

   Cocks.—" 
  Note 
  on 
  the 
  Breeding 
  of 
  the 
  Otter," 
  'Proc. 
  Z. 
  S.,' 
  1881. 
  

   Cocks.— 
  " 
  Habits 
  of 
  the 
  Polecat," 
  'The 
  Zoologist,' 
  1891. 
  

   Cocks.— 
  "Note 
  on 
  the 
  Gestation 
  of 
  the 
  Pine 
  Marten," 
  ' 
  i'roc. 
  Z. 
  S.,' 
  1900. 
  

   Cocks.— 
  "Tne 
  Gestation 
  of 
  the 
  Badger," 
  'The 
  Zoologist,' 
  1903, 
  1904. 
  

   CoiiN. 
  — 
  " 
  Zur 
  Histologic 
  und 
  Histogenesis 
  des 
  Corpus 
  luteutn 
  und 
  des 
  inter- 
  

  

  siitiellen 
  Ovarialgewebes," 
  'Arch. 
  f. 
  Mikr. 
  Anat.,' 
  vol. 
  Ixii, 
  1903. 
  

   Dixon. 
  — 
  "The 
  Ovary 
  as 
  an 
  Organ 
  of 
  Internal 
  Secretion," 
  'The 
  Practitioner,' 
  

  

  vol. 
  Ixvi, 
  1901. 
  

  

  Fraenkel. 
  — 
  " 
  Die 
  Function 
  des 
  Corpus 
  luteum," 
  ' 
  Arch. 
  f. 
  Gynak.,' 
  vol. 
  Ixviii, 
  

  

  1903. 
  

   Fraexkel 
  and 
  Cohn. 
  — 
  "Experimentelle 
  Untersuchungen 
  iiber 
  den 
  Einfluss 
  

  

  des 
  Corpus 
  luteum 
  auf 
  die 
  Insertion 
  des 
  Eies," 
  'Anat. 
  Anz.,' 
  vol. 
  xx, 
  

  

  1901. 
  

   GiACOMiNi. 
  — 
  "Contributo 
  all' 
  istologia 
  dell' 
  ovario 
  dei 
  Selaci," 
  'Ricerca 
  ve 
  

  

  Laboratoria 
  di 
  Anatomia 
  normale 
  della 
  Boy. 
  Universita 
  di 
  Roma, 
  

  

  vol. 
  V, 
  1896. 
  

  

  Halban. 
  — 
  "Ovarium 
  und 
  Menstruation," 
  'S. 
  B. 
  d. 
  Akad. 
  d. 
  Wissenschaften,' 
  

  

  vol. 
  ex, 
  Wien, 
  19Q1. 
  

   Harting. 
  — 
  "The 
  Polecat, 
  M 
  us 
  tela 
  putorius," 
  'The 
  Zoologist,' 
  189 
  L 
  

   Heape. 
  — 
  "Tiie 
  Menstruation 
  of 
  Semnopithecus 
  entellus," 
  'Phil. 
  Trans. 
  

  

  B.,' 
  vol. 
  clxxxv, 
  1894. 
  

  

  Heape.— 
  "The 
  Menstruation 
  and 
  Ovulation 
  of 
  Macacus 
  rhesus," 
  'Phil. 
  

  

  Trans. 
  B.,' 
  vol. 
  clxxxviii, 
  1897. 
  

   Heape.— 
  "Tiie 
  Artificial 
  Insemination 
  of 
  Mammals, 
  etc.," 
  ' 
  Proc. 
  R. 
  S.,' 
  

  

  vol. 
  Ixi, 
  1897. 
  

  

  