﻿^;14 
  

  

  ^^g^ 
  

  

  New 
  Series, 
  No. 
  191 
  (Vol. 
  48, 
  Part 
  3). 
  Price 
  10s. 
  

  

  NOVEMBEE, 
  1904. 
  

  

  THK 
  

  

  QUARTERLY 
  JOURNAL 
  

  

  OF 
  

  

  MICROSCOPICAL 
  SCIENCE. 
  

  

  EUlTKl) 
  HY 
  

  

  E. 
  liAY 
  LANKESTEK, 
  M.A., 
  LL.D., 
  F.R.S., 
  

  

  HONOUARY 
  FKM.OW 
  Of 
  EXETER 
  COI.I.EG 
  E, 
  OXKORD 
  ; 
  CORRESPONDENT 
  OF 
  THE 
  INSTITUTE 
  OK 
  FRANCE 
  

   AND 
  OF 
  THE 
  IMPEUIAT. 
  ACADEMY 
  OF 
  SCIENCES 
  OP 
  ST- 
  FETKUSBURG, 
  AND 
  OP 
  THE 
  ACADEMY 
  

   OK 
  SCIENCES 
  OF 
  F 
  HIL 
  ADE 
  I.P 
  HI 
  A 
  : 
  FOREIGN 
  MEMBER 
  OF 
  THE 
  ROYAL 
  SOCIETY 
  OF 
  

   SCIENCES 
  OF 
  GOTTINGEX 
  AND 
  OFTUE 
  KOYAI, 
  BOHEMIA 
  N 
  SOCIETY 
  OF 
  SCIENCES, 
  

   A?fD 
  OF 
  THE 
  ACADEMY 
  OK 
  THE 
  I.INCEI 
  OF 
  HOME, 
  AND 
  OF 
  THE 
  AMERICAN 
  

   ACADEMY 
  OF 
  ARTS 
  AND 
  SCIENCES 
  OF 
  BOSTON 
  ; 
  ASSOCIATE 
  OF 
  THE 
  

   ROYAI. 
  ACADEMY 
  OF 
  BELGIUM; 
  HONORARY 
  MEMBER 
  oF 
  THE 
  

   >E\V 
  YORK 
  ACADEMY 
  OF 
  SCIENCES, 
  AND 
  OF 
  THE 
  

   CAMBRIDGE 
  PHILOSOPHICAL 
  SOCIETY, 
  AND 
  OF 
  

   THE 
  ROYAL 
  PHYSICAL 
  SOCIETY 
  OK 
  EDIN- 
  

   BURGH 
  ; 
  HONORARY 
  >I 
  E 
  M 
  B 
  K 
  R 
  OF 
  THE 
  

   BIOLOGICAL 
  SOCIETY 
  OK 
  PARIs; 
  

   FOREIGN 
  ASSOCIATE 
  OF 
  THE 
  NATIONAL 
  ACADEMY 
  OF 
  SCIENCES, 
  U.S., 
  AND 
  MEMBER 
  OF 
  

   THE 
  AMERICAN 
  PHILOSOPHICAL 
  SOCIETY 
  ; 
  

   DIRECTOR 
  OF 
  THE 
  NATURAL 
  HISTORY 
  DEPARTMENTS 
  OK 
  THE 
  BRITISH 
  MUSEirM; 
  LATE 
  KULLKRIAN 
  

   PROFESSOR 
  OK 
  PHYSIOLOGY 
  IN 
  TtIK 
  ROYAL 
  INSTITUTION 
  OF 
  GREAT 
  BRITAIN; 
  

   LATE 
  LI.NACBE 
  PROFESSOR 
  OK 
  COMPARATIVE 
  AAATOMY 
  AND 
  FELLOW 
  OF 
  MERTOK 
  COLLEGE, 
  OXFORD. 
  

  

  WITH 
  THK 
  CO-OPEKATION 
  OF 
  

  

  ADAM 
  SEDGWICK, 
  M.A., 
  F.R.S., 
  

  

  FELLOW 
  AND 
  TUTOR 
  OF 
  TRINITY 
  COLLEGE, 
  CAMBRIDGE; 
  

  

  W. 
  F. 
  E. 
  WELDON, 
  M.A., 
  F.E.S., 
  

  

  SYDNEY 
  J. 
  HICKSON, 
  M.A., 
  F.R.S., 
  

  

  BEYER 
  PROFESSOR 
  OK 
  ZOOLOGY 
  IN 
  THE 
  OWENS 
  COLLEGE, 
  MANCHESTHK. 
  

  

  WITH 
  LITHOGRAPHIC 
  PLATES 
  AND 
  ENGRAVINGS 
  ON 
  WOOD. 
  

  

  LONDON: 
  

  

  J. 
  & 
  A. 
  CHUECHILL, 
  7 
  GEEAT 
  MAELBOEOUGH 
  STEEET. 
  

  

  1904. 
  

  

  [London 
  and 
  Dorking 
  

  

  Adlfird 
  and 
  Son,] 
  

  

  