[ V ] 
XXVII.  On  the  Magnetic  Induction  of  Crystals.  By  Professor  Julius  Plucker,  of  Bonn., 
F.M.R.S.,  ILM.B.I. page  543 
XXVIII.  On  the  Development  of  Decapod  Crustacea.  By  C.  Spence  Bate,  F.L.S.  &c. 
Communicated  hy  Sir  W.  Snow  Harris,  F.B.S 589 
XXIX.  An  Inquiry  regarding  the  parts  of  the  Nervous  System  which  regulate  the  con- 
tractions of  the  Arteries.  By  Joseph  Lister,  Esq.,  F.R.C.S.  Eng.  and  Edin., 
Assistant  Suraeon  to  the  Boual  Infirmary,  Edinburgh.  Communicated  by  Dr- 
Sharpey,  Sec.B.S. 607 
XXX.  On  the  Cutaneous  Pigmentary  System  of  the  Frog.  By  Joseph  Lister,  Esq., 
F.B.C.S.  Eng.  and  Edin.,  Assistant  Surgeon  to  the  Royal  Infirmary,  Edinburgh. 
Communicated  by  Dr.  Sharpey,  Sec.  R.S. 627 
XXXI.  On  the  Early  Stages  of  Inflammation.  By  Joseph  Lister,  Esq.,  F.R.C.S.  Eng. 
and  Edin.,  Assistant  Surgeon  to  the  Royal  Infirmary,  Edinburgh.  Communicated 
by  Dr.  Sharpey,  Sec.  R.S 645 
XXXII.  On  the  Structure  of  Lavas  which  have  consolidated  on  steep)  slopes;  with  Re- 
marks on  the  Mode  of  Origin  of  Mount  Etna,  and  on  the  Theory  of  “ Craters  of 
Elevation.'’'  By  Sir  Charles  Lyell,  F.R.S.,  D.C.L 703 
XXXIII.  Note  on  Archdeacon  Pratt’s  Pape)'  “ On  the  Effect  of  Local  Attraction  in  the 
English  Arc.”  By  Captain  A.  R Clarke,  R.E.  Communicated  by  Lieut. -Colonel 
James,  R.E 787 
XXXIV.  On  the  Organization  of  the  Brachiopoda.  By  Albany  Hancock,  Esq.  Com- 
municated by  T.  H.  Huxley,  Esq.,  F.R.S 791 
XXXV.  On  Chondrosteus,  an  Extinct  Genus  of  the  Sturionidce,  found  in  the  Lias 
Formation  at  Lyme  Regis.  By  Sir  Philip  he  Malpas  Grey  Egerton,  Bart.,  M.P., 
F.R.S.,  F.G.S.  &c 871 
XXXVI.  On  the  Influence  of  Temperature  on  the  Refraction  of  Light.  By  the  Rev.  T. 
P.  Dale,  M.A.,  F.R.A.S.,  and  Dr.  J.  H.  Gladstone,  F.R.S 887 
XXXVH.  On  the  Structure  and  Functions  of  the  Hairs  of  the  Crustacea.  By  Campbell 
De  Morgan,  Surgeon  to  the  Middlesex  Hospital.  Communicated  hy  George 
Busk,  E.sq 895 
Index 905 
Presmts 
Appendix. 
[ 1 ] 
