﻿Report 
  of 
  the 
  President 
  3 
  1 
  

  

  Trachodon 
  mount, 
  with 
  two 
  skeletons 
  and 
  with 
  base 
  designed 
  

   to 
  illustrate 
  the 
  environment, 
  has 
  been 
  finished. 
  This 
  splendid 
  

   group 
  and 
  the 
  Allosaurus 
  mount 
  mark 
  a 
  step 
  forward 
  in 
  

   methods 
  of 
  exhibiting 
  fossil 
  vertebrates 
  and 
  add 
  greatly 
  to 
  

   the 
  realistic 
  effect 
  and 
  teaching 
  quality 
  of 
  the 
  fossil 
  skeletons. 
  

  

  Progress 
  has 
  been 
  made 
  in 
  the 
  installation 
  of 
  the 
  Permian 
  

   fossils, 
  which 
  will 
  represent 
  a 
  third 
  great 
  division 
  in 
  the 
  

   history 
  of 
  the 
  earth, 
  the 
  age 
  of 
  Amphibians, 
  no 
  less 
  distinct 
  

   and 
  remarkable 
  in 
  the 
  character 
  of 
  its 
  life 
  and 
  environment 
  

   than 
  the 
  age 
  of 
  Reptiles 
  or 
  the 
  age 
  of 
  Mammals. 
  

  

  Two 
  unusually 
  rare 
  and 
  valuable 
  acquisitions 
  have 
  been 
  

   received 
  as 
  the 
  gift 
  of 
  Mrs. 
  Morris 
  K. 
  Jesup. 
  One 
  is 
  a 
  speci- 
  

   men 
  of 
  the 
  "fish 
  lizard," 
  Ichthyosaurus, 
  from 
  the 
  quarries 
  of 
  

   Holzmaden, 
  Germany, 
  which 
  shows 
  the 
  character 
  of 
  the 
  

   entire 
  integument, 
  and 
  a 
  specimen 
  of 
  the 
  toothed 
  bird, 
  

   Hesperornis, 
  found 
  in 
  the 
  Cretaceous 
  of 
  western 
  Kansas. 
  

  

  Other 
  important 
  additions 
  have 
  been 
  received 
  through 
  

   field 
  parties. 
  

  

  Four 
  expeditions 
  were 
  sent 
  out 
  during 
  the 
  year, 
  all 
  of 
  

   which, 
  with 
  the 
  exception 
  of 
  the 
  Alaskan 
  expedition, 
  were 
  

   maintained 
  by 
  the 
  contributions 
  of 
  Mrs. 
  Morris 
  K. 
  Jesup. 
  

  

  Mr. 
  Barnum 
  Brown 
  conducted 
  an 
  expedition 
  to 
  central 
  

   Montana 
  to 
  search 
  for 
  dinosaur 
  remains. 
  Several 
  important 
  

   beds 
  of 
  fossils 
  were 
  located 
  and 
  a 
  number 
  of 
  valuable 
  speci- 
  

   mens 
  secured, 
  among 
  which 
  a 
  fine 
  skull 
  and 
  skeleton 
  of 
  the 
  

   Tyrannosaurus 
  and 
  a 
  skull 
  of 
  Triceratops 
  are 
  of 
  special 
  mention. 
  

  

  Dr. 
  W. 
  D. 
  Matthew 
  and 
  Mr. 
  Albert 
  Thomson 
  visited 
  the 
  

   Lower 
  Miocene 
  beds 
  in 
  Sioux 
  County, 
  Nebraska, 
  with 
  satis- 
  

   factory 
  results. 
  The 
  material 
  obtained 
  included 
  six 
  articulated 
  

   skeletons 
  of 
  Ste/?omylus, 
  several 
  skeletons 
  of 
  Merycochozrus, 
  

   various 
  skulls 
  and 
  parts 
  of 
  skeletons 
  of 
  horses, 
  camels, 
  rhi- 
  

   noceroses, 
  oreodonts 
  and 
  deer. 
  

  

  The 
  discovery 
  in 
  1907 
  of 
  mammoth 
  remains 
  in 
  Alaska 
  by 
  

   Mr. 
  L. 
  S. 
  Quackenbush 
  made 
  it 
  desirable 
  to 
  send 
  him 
  again 
  to 
  

   this 
  locality 
  and 
  the 
  work 
  was 
  continued 
  through 
  the 
  generosity 
  

   of 
  Mr. 
  J. 
  P. 
  Morgan, 
  Jr., 
  and 
  Mr. 
  Percy 
  R. 
  Pyne, 
  who 
  de- 
  

   frayed 
  the 
  cost 
  of 
  this 
  expedition. 
  Mr. 
  Quackenbush 
  brought 
  

   back 
  additional 
  parts 
  of 
  the 
  mammoth 
  specimen 
  discovered 
  

   in 
  1907, 
  including 
  the 
  lower 
  jaw, 
  tusks 
  and 
  various 
  bones 
  of 
  

  

  