﻿Dr. 
  D. 
  Ferrier 
  on 
  the 
  Brain 
  of 
  Monkeys. 
  431 
  

  

  May 
  13, 
  1875. 
  

  

  Dr. 
  J. 
  BUBDON 
  SANDERSON, 
  Vice-President, 
  in 
  the 
  Chair. 
  

  

  The 
  Presents 
  received 
  were 
  laid 
  on 
  the 
  table, 
  and 
  thanks 
  ordered 
  for 
  

   theni. 
  

  

  In 
  pursuance 
  of 
  the 
  Statutes, 
  the 
  names 
  of 
  the 
  Candidates 
  recom- 
  

   mended 
  for 
  election 
  into 
  the 
  Society 
  were 
  read 
  from 
  the 
  Chair 
  aa 
  

   follows 
  : 
  — 
  ■ 
  

  

  "William 
  Archer, 
  M.E.I.A. 
  

   James 
  Bisdon 
  Bennett, 
  M.D. 
  

   Dietrich 
  Brandis, 
  Ph.D., 
  F.L.S. 
  

   James 
  Caird, 
  C.B. 
  

   Prof. 
  John 
  Casey, 
  LL.D. 
  

   August 
  Dupre, 
  Ph.D., 
  E.C.S. 
  

   James 
  Geikie, 
  E.E.S.E. 
  

   James 
  Whitbread 
  Lee 
  Glaisher, 
  

   M.A. 
  

  

  John 
  Baboneau 
  Niekterlien 
  Hen- 
  

   nessey, 
  E.E.A.S. 
  

  

  Emanuel 
  Klein, 
  M.D. 
  

  

  E. 
  Eay 
  Lankester, 
  M.A. 
  

  

  George 
  Strong 
  Nares, 
  Capt. 
  E.N. 
  

  

  Eobert 
  Stirling 
  Newall, 
  E.E.A.S. 
  

  

  William 
  Chandler 
  Eoberts, 
  E.C.S. 
  

  

  Major-General 
  Henry 
  T. 
  D. 
  Scott, 
  

   E.E., 
  C.B. 
  

  

  The 
  Croonian 
  Lecture, 
  " 
  Experiments 
  on 
  the 
  Brain 
  of 
  Monkeys" 
  

   (Second 
  Series), 
  was 
  delivered 
  by 
  David 
  Ferrier 
  3 
  M.A., 
  

   M.D., 
  Professor 
  of 
  Forensic 
  Medicine, 
  King's 
  College. 
  Com- 
  

   municated 
  by 
  Dr. 
  Sanderson, 
  V.P.E.S. 
  Eeceived 
  April 
  27, 
  

   1875. 
  The 
  following 
  is 
  an 
  Abstract 
  : 
  — 
  

  

  This 
  paper 
  contains 
  the 
  details 
  of 
  experiments 
  on 
  the 
  brain 
  of 
  monkeys, 
  

   supplementary 
  to 
  those 
  already 
  laid 
  before 
  the 
  Society 
  by 
  the 
  author. 
  

   They 
  relate 
  chiefly 
  to 
  the 
  effects 
  of 
  destruction, 
  by 
  means 
  of 
  the 
  cautery, 
  

   of 
  localized 
  regions 
  previously 
  explored 
  by 
  electrical 
  stimulation. 
  

  

  Twenty-five 
  experiments 
  are 
  recorded 
  in 
  detail, 
  and 
  the 
  individual 
  

   experiments 
  are 
  illustrated 
  by 
  appropriate 
  drawings. 
  The 
  results 
  are 
  

   briefly 
  summed 
  up 
  as 
  follows 
  : 
  — 
  

  

  1. 
  Ablation 
  of 
  the 
  frontal 
  regions, 
  which 
  give 
  no 
  reaction 
  to 
  electrical 
  

   stimulation, 
  is 
  without 
  effect 
  on 
  the 
  powers 
  of 
  sensation 
  or 
  voluntary 
  

   motion, 
  but 
  causes 
  marked 
  impairment 
  of 
  intelligence 
  and 
  of 
  the 
  faculty 
  

   of 
  attentive 
  observation. 
  

  

  2. 
  Destruction 
  of 
  the 
  grey 
  matter 
  of 
  the 
  convolutions 
  bounding 
  the 
  

   fissure 
  of 
  Eolando 
  causes 
  paralysis 
  of 
  voluntary 
  motion 
  on 
  the 
  opposite 
  

   side 
  of 
  the 
  body 
  ; 
  while 
  lesions 
  circumscribed 
  to 
  special 
  areas 
  in 
  these 
  

   convolutions, 
  previously 
  localized 
  by 
  the 
  author, 
  cause 
  paralysis 
  of 
  volun- 
  

   tary 
  motion, 
  limited 
  to 
  the 
  muscular 
  actions 
  excited 
  by 
  electrical 
  stimula- 
  

   tion 
  of 
  the 
  same 
  parts. 
  

  

  VOL. 
  XXIII. 
  2 
  M 
  

  

  