﻿FOURTH 
  REPORT 
  OF 
  THE 
  DIRECTOR 
  I907 
  IO3 
  

  

  There 
  is 
  a 
  tuberosity 
  of 
  slight 
  elevation 
  resembling 
  a 
  third 
  tro- 
  

   chanter 
  and 
  below 
  it 
  and 
  extending 
  within 
  35 
  millimeters 
  in 
  a 
  dia- 
  

   metrical 
  plane 
  of 
  the 
  superior 
  arterial 
  foramen 
  is 
  the 
  hypotrochan- 
  

   teric 
  fossa. 
  Its 
  depth 
  is 
  accentuated 
  by 
  a 
  flangelike 
  projection 
  of 
  

   the 
  shaft. 
  The 
  femur 
  is 
  not 
  especially 
  platymeric, 
  index 
  74.3. 
  

  

  The 
  lower 
  portion 
  of 
  the 
  femur 
  is 
  apparently 
  normal 
  although 
  

   the 
  external 
  tuberosity 
  is 
  large, 
  but 
  this 
  seems 
  a 
  characteristic 
  of 
  

   many 
  of 
  the 
  femora. 
  

  

  Specimen 
  4505 
  ; 
  a 
  typical 
  shaft. 
  It 
  is 
  428 
  millimeters 
  in 
  length 
  

   and 
  weighs 
  10^2 
  ounces. 
  In 
  color 
  it 
  is 
  a 
  straw 
  yellow 
  and 
  like 
  all 
  

   the 
  other 
  bones 
  bears 
  no 
  sign 
  of 
  fossilization. 
  The 
  neck 
  is 
  long 
  and 
  

   the 
  ball 
  bears 
  a 
  deep 
  lozenge-shaped 
  fossa 
  of 
  the 
  interarticular 
  

   ligament. 
  The 
  linea 
  aspera 
  is 
  heavy 
  and 
  above 
  the 
  arterial 
  

   foramen 
  becomes 
  the 
  gluteal 
  ridge, 
  the 
  width 
  of 
  which 
  is 
  accentu- 
  

   ated 
  by 
  the 
  flangelike 
  projection 
  on 
  the 
  anterior 
  border 
  of 
  the 
  shaft. 
  

   Above 
  this 
  ridge 
  is 
  the 
  third 
  or 
  supernumerary 
  trochanter. 
  The 
  

   sagittal 
  diameter 
  of 
  the 
  shaft 
  is 
  24 
  millimeters 
  and 
  the 
  transverse- 
  

   34, 
  which 
  gives 
  the 
  platymeric 
  index 
  70.6. 
  

  

  Specimen 
  4516; 
  a 
  short 
  heavy 
  femur 
  with 
  a 
  length 
  of 
  435 
  milli- 
  

   meters 
  and 
  a 
  weight 
  of 
  11 
  ounces. 
  The 
  upper 
  portion 
  is 
  heavy 
  

   and 
  abnormal 
  in 
  several 
  characters. 
  The 
  neck 
  is 
  short 
  and 
  the 
  

   great 
  trochanter 
  heavy. 
  These 
  characters 
  give 
  the 
  upper 
  portion 
  

   of 
  the 
  femur 
  a 
  wide, 
  heavy 
  appearance 
  and 
  the 
  upper 
  part 
  of 
  the 
  

   head 
  or 
  ball 
  rises 
  scarcely 
  a 
  centimeter 
  above 
  the 
  top 
  of 
  the 
  great 
  

   trochanter. 
  The 
  portion 
  of 
  the 
  ball 
  surrounding 
  the 
  fossa 
  of 
  the 
  

   interarticular 
  ligament 
  is 
  flattened 
  and 
  the 
  fossa 
  is 
  small. 
  On 
  the 
  

   internal 
  side 
  of 
  the 
  ball 
  at 
  its 
  juncture 
  with 
  the 
  neck 
  there 
  is 
  a 
  

   depression 
  12 
  millimeters 
  in 
  length 
  and 
  a 
  millimeter 
  wide. 
  The 
  

   digital 
  fossa 
  is 
  deep, 
  wide 
  and 
  filled 
  with 
  small 
  tubercles. 
  The 
  

   cavity 
  reaches 
  down 
  along 
  the 
  intertrochanteric 
  ridge 
  to 
  the 
  lesser 
  

   trochanter. 
  The 
  shaft 
  is 
  not 
  platymeric. 
  

  

  Specimen 
  4513; 
  a 
  large 
  shaft, 
  probably 
  male, 
  with 
  a 
  length 
  of 
  

   470 
  millimeters 
  and 
  a 
  weight 
  of 
  11 
  ounces. 
  It 
  is 
  noticeably 
  platy- 
  

   meric 
  and 
  has 
  an 
  index 
  of 
  63. 
  1. 
  Part 
  of 
  the 
  great 
  trochanter 
  is 
  

   broken 
  and 
  with 
  it 
  the 
  upper 
  part 
  of 
  the 
  external 
  border 
  of 
  the 
  

   shaft. 
  An 
  elevation 
  in 
  the 
  bone 
  just 
  where 
  it 
  is 
  broken 
  seems 
  to 
  

   indicate 
  that 
  a 
  third 
  trochanter 
  had 
  been 
  broken 
  off. 
  

  

  Tibiae. 
  One 
  of 
  the 
  peculiarities 
  of 
  the 
  tibiae 
  which 
  is 
  at 
  once 
  

   apparent 
  to 
  the 
  most 
  superficial 
  observer 
  is 
  the 
  transverse 
  flattening 
  

   of 
  the 
  tibial 
  shaft 
  which 
  gives 
  it 
  a 
  saberlike 
  appearance. 
  This 
  

   anomaly 
  is 
  present 
  in 
  75 
  per 
  cent 
  of 
  the 
  tibiae 
  from 
  Gerry 
  and 
  

  

  