﻿830 
  FRANCIS 
  H. 
  A. 
  MARSHALL. 
  

  

  Dasyurus 
  in 
  a 
  paper 
  read 
  before 
  tlie 
  Linuean 
  Society 
  of 
  

   New 
  South 
  Wales 
  and 
  abstracted 
  in 
  'Nature' 
  (1903). 
  This 
  

   autlior 
  states 
  further 
  that 
  the 
  corpus 
  luteuni 
  atreticum 
  is 
  

   formed 
  in 
  the 
  same 
  way 
  as 
  the 
  corpus 
  luteuni 
  verum, 
  a 
  result 
  

   which, 
  so 
  far 
  as 
  I 
  am 
  aware, 
  differs 
  from 
  those 
  of 
  all 
  other 
  

   investigators. 
  (See 
  postscript 
  at 
  end 
  of 
  paper.) 
  

  

  Papers 
  bearing- 
  on 
  this 
  subject 
  have 
  also 
  lately 
  appeared 
  by 
  

   Biihler 
  (1902) 
  and 
  Wallace 
  (1903), 
  avIio 
  describe 
  the 
  changes 
  

   undei'gone 
  by 
  newly-discharged 
  follicles 
  in 
  various 
  fishes. 
  

   Biihler's 
  descriptions, 
  which 
  refer 
  to 
  Cyclostomes 
  and 
  to 
  

   certain 
  Teleosteans, 
  indicate 
  that 
  there 
  is 
  nothing 
  of 
  the 
  

   nature 
  of 
  a 
  corpus 
  luteum 
  formed 
  in 
  the 
  cases 
  investigated, 
  

   while 
  Wallace 
  shows 
  that 
  with 
  the 
  Teleostean 
  Zoarces 
  and 
  

   the 
  Elasmobranch 
  Spinax 
  there 
  is 
  a 
  very 
  distinct 
  hyper- 
  

   trophy 
  of 
  the 
  follicular 
  epithelium 
  after 
  rupture, 
  thus 
  con- 
  

   firming 
  Giacomini's 
  account 
  (1896) 
  of 
  the 
  recently 
  discharged 
  

   follicles 
  of 
  certain 
  Elasmobranchs. 
  

  

  Note 
  on 
  the 
  Anatomy 
  op 
  the 
  Internal 
  Genital 
  Organs. 
  

  

  The 
  uterus 
  of 
  the 
  ferret 
  is 
  typically 
  bicornuate, 
  each 
  of 
  the 
  

   uterine 
  horns 
  passing 
  forward 
  into 
  a 
  slender 
  Fallopian 
  tube, 
  

   which 
  is 
  very 
  much 
  coiled 
  at 
  its 
  anterior 
  end, 
  passing 
  several 
  

   times 
  round 
  one 
  side 
  of 
  the 
  ovary. 
  The 
  mouth 
  of 
  the 
  

   Fallopian 
  tube 
  encloses 
  the 
  ovary, 
  so 
  that 
  the 
  ova 
  on 
  being 
  

   discharged 
  pass 
  into 
  a 
  sac, 
  and 
  consequently 
  are 
  not 
  shed 
  

   into 
  the 
  body-cavity. 
  Fig. 
  8, 
  PI. 
  20, 
  represents 
  a 
  transveise 
  

   section 
  through 
  the 
  ovary, 
  and 
  shows 
  its 
  attachment 
  to 
  the 
  

   wall 
  of 
  the 
  body-cavity, 
  as 
  well 
  as 
  the 
  sac 
  into 
  which 
  the 
  eggs 
  

   are 
  shed 
  and 
  the 
  coiled 
  Fallopian 
  tube. 
  The 
  latter 
  appears 
  

   no 
  less 
  than 
  six 
  times 
  in 
  the 
  section. 
  

  

  The 
  Histology 
  of 
  the 
  Uterus 
  during 
  the 
  CEstrous 
  Cycle. 
  

  

  The 
  changes 
  through 
  Avhich 
  the 
  non-pregnant 
  uterus 
  of 
  the 
  

   ferret 
  passes 
  during 
  the 
  oestrous 
  cycle 
  may 
  be 
  conveniently 
  

   arranged 
  according 
  to 
  the 
  same 
  method 
  of 
  grouping 
  as 
  that 
  

  

  