﻿ISSUED 
  BY 
  THE 
  RAY 
  SOCIETY. 
  21 
  

  

  SU. 
  Letters 
  of 
  John 
  Ray. 
  Edited 
  by 
  E. 
  Lankester, 
  M.D., 
  

  

  F.R.S. 
  Two 
  Plates. 
  8vo. 
  

   £ 
  III. 
  A 
  Monograph 
  of 
  the 
  British 
  Nudibranchiate 
  Mollusca. 
  

  

  By 
  Messrs. 
  Alder 
  and 
  Hancock. 
  Part 
  IV. 
  Twelve 
  Plates. 
  

  

  Imp. 
  4to. 
  

  

  For 
  the 
  Sixth 
  Year, 
  1849. 
  

  

  -> 
  I. 
  Reports 
  and 
  Papers 
  on 
  Vegetable 
  Physiology 
  and 
  Botanical 
  

   Geography. 
  Edited 
  by 
  A. 
  Henfrey, 
  F.R.S. 
  Three 
  Plates. 
  

   8vo. 
  

   5> 
  II. 
  A 
  Monograph 
  of 
  the 
  British 
  Entomostracous 
  Crustacea. 
  

   By 
  W. 
  Baird, 
  M.D., 
  F.R.S. 
  Thirty-six 
  Plates. 
  8vo. 
  

  

  For 
  the 
  Seventh 
  Year, 
  1850. 
  

  

  £ 
  I. 
  Bibliographia 
  Zoologize 
  et 
  Geologise. 
  By 
  Professor 
  Agassiz. 
  

  

  Vol. 
  II. 
  8vo. 
  

   S 
  II. 
  A 
  Monograph 
  of 
  the 
  British 
  Nudibranchiate 
  Mollusca. 
  

  

  By 
  Messrs. 
  Alder 
  and 
  Hancock. 
  Part 
  V. 
  Fifteen 
  Plates. 
  

  

  Imp. 
  4to. 
  

  

  For 
  the 
  Eighth 
  Year, 
  1851. 
  

  

  ^ 
  I. 
  A 
  Monograph 
  of 
  the 
  British 
  Angiocarpous 
  Lichens. 
  By 
  the 
  

  

  Rev. 
  W. 
  A. 
  Leighton, 
  M.A. 
  Thirty 
  Plates. 
  8vo. 
  

   ^ 
  II. 
  A 
  Monograph 
  of 
  the 
  Family 
  Cirripedia. 
  By 
  C. 
  Darwin, 
  

   M.A., 
  F.R.S. 
  Vol. 
  I. 
  Ten 
  Plates. 
  8vo. 
  

  

  