488  MR.  S.  S.  BUCKMAN  ON  THE  BAJOCIAN  [NoV.  1 893, 
In  the  field-quarry  the  divisional  planes  are  more  numerous, 
owing  to  the  proximity  of  the  lower  beds  to  the  surface  ;  therefore 
a  better  idea  of  the  divisions  can  be  gained  than  in  the  big  quarry, 
where,  owing  to  the  beds  being  cemented  together,  the  strati- 
graphieal  and  palaeontological  planes  do  not  necessarily  coincide. 
In  the  lower  beds  of  Section  IY.  there  is  an  increase  in  thickness, 
compared  with  those  of  Bradford,  but  the  same  sequence  up  to  8. 
I  cannot  say  whether  this  bed  should  be  J,  and  part  of  9,  L  ;  or  if 
this  be  L,  and  J  be  absent.  I  place  No.  7  as  H  ?  from  evidence  of 
fossils  marked  ‘  Halfway  House,’  which  could  only  have  come  from 
this  horizon,  as  the  next  section  will  explain.  To  Bed  4  the  name 
4  Fossil  Bed  ’  is  given — how  different  the  position  from  that  at 
Bradford  is  worthy  of  note ;  and  this  horizon  is  more  prolific  here 
than  anywhere  else  to  my  knowledge.  Above  the  ‘Fossil  Bed’  it 
may  be  seen  that,  in  place  of  and  equivalent  to  the  16  feet  of  4  top 
beds’  of  Bradford,  there  are,  here,  about  33  feet;  and,  even  then, 
the  limestone  is  very  probably  not  finished  with,  while  at  Bradford 
it  presumably  has  come  to  an  end. 
Before  leaving  this  section  it  should  be  noted  that  LtJiynchonella 
ringens  forms  a  very  good  bench-mark  in  the  lower  beds,  and  it  is 
an  abundant  fossil.  At  Bradford  it  is  extremely  rare  ;  but  as  only 
the  thinnest  edge  of  the  strata  deposited  during  this  hemera  is 
found  there,  the  scarcity  is  not  surprising. 
About  half-a-mile  in  a  south-easterly  direction  is  the  quarry  of 
Louse  Hill,  with  the  following  strata  exposed : — 
Section  YI. — Louse  Hill.  (About  If  mile  nearly  due  west  of  Sher¬ 
borne  :  about  \  mile  south-east  from  Halfway  House.) 
Garantiance.  E.  1 . 
2. 
Garantiance  F.  3. 
&  & 
Niortensis.  G-. 
Humphriesiani.  H.  4. 
Soil.  Feet.  Inches,, 
Rotten  yellow  stone  with  numerous 
Aulacothyris  ‘ Meriani ,  var.’ .  4-5 
Earthy  stone  .  5 
‘ Astarte  or  Rotten  Bed.’ — A  rotten  yel¬ 
low  stone,  with  Astarte  obliqua,  and 
Ancyloceras,  ParJcinsonia  Garantiana , 
and  other  species;  Oppelia  sp.;  Tere- 
bratula  Phillipsi,  Morris,  Natica  sp. 
Also  enclosed  portions  of  bed  below — 
nodular-shaped  masses  in  an  irony 
coating  .  5 
The  ‘  Irony  Bed.’ — A  hard,  greyish-brown, 
sometimes  pinkish  stone,  with  a  some¬ 
what  cherty  appearance  ;  very  unevenly 
separated  from  the  bed  below,  into 
the  hollows  of  which  it  dips.  In  many 
places  part  of  it  is  attached  to  the 
bed  below  like  a  scale.  Stephanoceras 
cf.  Humphriesianum,  1  Steph.  BraiJcen- 
ridgii ,’  Sphceroceras  Brongniarti,  Pceci- 
lomorphus  cycloides.  Many  species  of 
Pleurotomaria.  Several  peculiar  bra- 
chiopoda,  viz.  :  Bhynchonella  dor- 
setensis,  S.  Buckm.,  Aulacothyris  Haasi, 
