﻿FOURTH 
  REPORT 
  OF 
  THE 
  DIRECTOR 
  ICpj 
  

  

  99 
  

  

  canals 
  are 
  not 
  normal 
  in 
  form. 
  The 
  external 
  base 
  of 
  the 
  skull 
  

   presents 
  several 
  other 
  interesting 
  features, 
  one 
  of 
  which 
  is 
  the 
  

   form 
  of 
  the 
  foramen 
  magnum. 
  

  

  An 
  examination 
  of 
  the 
  upper 
  portion 
  of 
  the 
  skull 
  shows 
  that 
  the 
  

   sutures 
  have 
  begun 
  to 
  amalgamate. 
  This 
  is 
  especially 
  noticeable 
  

   in 
  the 
  coronal 
  suture 
  where 
  it 
  disappears 
  after 
  touching 
  the 
  tem- 
  

   poral 
  ridge. 
  On 
  the 
  left 
  side, 
  however, 
  there 
  is 
  an 
  excrescence 
  

   fonned 
  by 
  two 
  spinous 
  processes 
  that 
  arise 
  a 
  millimeter 
  above 
  the 
  

   plane 
  of 
  the 
  alesphenoid. 
  These 
  excrescences 
  are 
  thin 
  and 
  cal- 
  

   careous 
  and 
  appear 
  to 
  be 
  the 
  result 
  of 
  an 
  injury. 
  

  

  The 
  supraciliary 
  ridges 
  are 
  heavy 
  and 
  their 
  surface 
  covered 
  with 
  

   fine 
  convolutions. 
  The 
  frontal 
  bone 
  slopes 
  back 
  and 
  the 
  forehead 
  

   is 
  low. 
  The 
  occipital 
  region 
  is 
  full 
  but 
  asymmetric, 
  the 
  left 
  side 
  

   being 
  larger. 
  The 
  nasal 
  bone 
  curves 
  sharply 
  out 
  from 
  the 
  face 
  

   lifting 
  rhinion 
  above 
  the 
  plane 
  of 
  dacryon. 
  This 
  suggests 
  a 
  wide 
  

   and 
  prominent 
  probocis 
  which 
  must 
  have 
  appeared 
  in 
  life 
  formid- 
  

   able 
  as 
  accentuated 
  by 
  the 
  beetling 
  brows. 
  The 
  whole 
  appearance 
  

   of 
  the 
  skull 
  with 
  its 
  many 
  ridges 
  indicates 
  an 
  extraordinary 
  mus- 
  

   culature. 
  A 
  list 
  of 
  the 
  principal 
  rectilinear 
  measurements 
  follows 
  : 
  

  

  Maximum 
  length, 
  187 
  mm 
  

  

  Maximum 
  width, 
  134 
  mm 
  

  

  Basal 
  hight, 
  measured 
  from 
  basion 
  

  

  to 
  bregma, 
  141 
  mm 
  

   Auricular 
  hight, 
  120 
  mm 
  

   Horizontal 
  circumference, 
  525 
  mm 
  

   Auriculo-nasal 
  length, 
  95 
  mm 
  

   Auriculo-prosthionic 
  length, 
  100 
  mm 
  

   Basi-nasal 
  length, 
  108 
  mm 
  

  

  Basi-prosthionic 
  length, 
  98 
  mm 
  

   Nasi-prosthionic 
  length, 
  76 
  mm 
  

   Bi-zygomatic 
  breadth, 
  137 
  mm 
  

   Bi-stephanic, 
  118 
  mm 
  

   Orbital 
  hight, 
  38 
  mm 
  

   Orbital 
  width, 
  45 
  mm 
  

   Nasal 
  hight, 
  55 
  mm 
  

   Nasal 
  width, 
  26 
  mm 
  

  

  

  INDEXES 
  

  

  

  

  Part 
  

  

  Measurement 
  

  

  Decimal 
  indexes 
  

  

  Classification 
  

  

  Breadth 
  

  

  134 
  

   187 
  

  

  

  71.6 
  

  

  Dolichocephalic 
  

  

  Hight 
  

  

  141 
  

  

  

  75-4 
  

  

  Metriocephalic 
  

  

  

  I8 
  7 
  

  

  

  

  ♦ 
  

  

  Alveolar 
  

  

  98 
  

   108 
  

  

  

  90.79 
  

  

  Orthognathous 
  

  

  Nasal 
  

  

  26 
  

  

  

  47-3 
  

  

  Leptorrhine 
  

  

  

  55 
  

  

  

  