﻿38 
  ANNUAL 
  REPORT 
  SMITHSONIAN 
  INSTITUTION, 
  1922. 
  

  

  valuable 
  skeletal 
  material, 
  as 
  has 
  been 
  the 
  case 
  for 
  several 
  years 
  

   past. 
  The 
  exploration 
  of 
  Pueblo 
  Bonito 
  in 
  the 
  Chaco 
  Canyon, 
  

   N. 
  Mex., 
  by 
  the 
  National 
  Geographic 
  Society 
  under 
  the 
  direction 
  of 
  

   Mr. 
  Neil 
  M. 
  Judd 
  during 
  the 
  summer 
  of 
  1921 
  was 
  largely 
  prelimi- 
  

   nary. 
  The 
  exploration 
  will 
  be 
  continued 
  through 
  a 
  number 
  of 
  sea- 
  

   sons 
  and 
  the 
  collections 
  are 
  to 
  become 
  the 
  property 
  of 
  the 
  National 
  

   Museum. 
  

  

  Early 
  in 
  the 
  year 
  Mr. 
  F. 
  W. 
  Foshag 
  collected 
  minerals 
  from 
  

   .interesting 
  cave 
  deposits 
  in 
  the 
  Grand 
  Canyon, 
  near 
  Supai, 
  Ariz., 
  

   a 
  project 
  made 
  possible 
  through 
  the 
  courtesy 
  of 
  Mr. 
  C. 
  A. 
  Heber- 
  

   lein, 
  operating 
  in 
  the 
  region. 
  Mr. 
  Foshag 
  also 
  made 
  field 
  trips 
  to 
  

   southern 
  California 
  and 
  Nevada 
  in 
  connection 
  with 
  research 
  work 
  

   at 
  the 
  University 
  of 
  California, 
  the 
  results 
  of 
  which 
  were 
  likewise 
  

   added 
  to 
  the 
  national 
  collections. 
  

  

  Doctor 
  Bassler 
  spent 
  his 
  vacation 
  in 
  July, 
  1921, 
  in 
  geological 
  field- 
  

   work 
  in 
  the 
  central 
  basin 
  of 
  Tennessee, 
  under 
  the 
  auspices 
  of 
  the 
  

   Geological 
  Survey 
  of 
  that 
  State. 
  The 
  field 
  offered 
  such 
  opportunities 
  

   that 
  arrangements 
  were 
  made 
  for 
  another 
  summer's 
  work 
  in 
  the 
  

   same 
  general 
  area. 
  During 
  the 
  greater 
  part 
  of 
  June, 
  1922, 
  there- 
  

   fore 
  Doctor 
  Bassler, 
  in 
  company 
  with 
  Dr. 
  E. 
  O. 
  Ulrich 
  and 
  Mr. 
  

   R. 
  D. 
  Messier, 
  of 
  the 
  United 
  States 
  Geological 
  Survey, 
  was 
  occupied 
  

   in 
  making 
  stratigraphic 
  sections 
  and 
  collecting 
  fossils 
  over 
  the 
  en- 
  

   tire 
  central 
  basin, 
  an 
  area 
  of 
  about 
  8,000 
  square 
  miles. 
  The 
  ultimate 
  

   object 
  of 
  this 
  work 
  is 
  the 
  preparation 
  of 
  a 
  monograph 
  on 
  the 
  

   stratigraphy 
  and 
  paleontology 
  of 
  Tennessee. 
  On 
  the 
  completion 
  

   of 
  his 
  work 
  in 
  Tennessee, 
  in 
  1921, 
  Doctor 
  Bassler 
  proceeded 
  to 
  

   Springfield, 
  111., 
  where 
  casts 
  of 
  type 
  specimens 
  in 
  the 
  State 
  museum 
  

   collections 
  were 
  made, 
  in 
  accordance 
  with 
  the 
  department's 
  plan 
  

   to 
  complete 
  so 
  far 
  as 
  possible 
  the 
  representation 
  of 
  type 
  specimens 
  

   in 
  the 
  national 
  collections. 
  Through 
  the 
  courtesy 
  of 
  Mr. 
  E. 
  J. 
  

   Armstrong, 
  of 
  Erie, 
  Pa., 
  Doctor 
  Bassler 
  visited 
  all 
  the 
  classical 
  

   Silurian 
  and 
  Devonian 
  localities 
  in 
  northwestern 
  Pennsylvania 
  and 
  

   western 
  New 
  York 
  during 
  the 
  latter 
  part 
  of 
  September 
  to 
  obtain 
  

   field 
  knowledge 
  of 
  the 
  detailed 
  geology 
  and 
  to 
  collect 
  carefully 
  se- 
  

   lected 
  sets 
  of 
  fossils 
  illustrating 
  the 
  numerous 
  formations 
  of 
  the 
  

   region. 
  The 
  work 
  was 
  highly 
  successful, 
  and 
  the 
  large 
  collections 
  

   of 
  Devonian 
  fossils 
  in 
  the 
  Museum 
  concerning 
  which 
  exact 
  strati- 
  

   graphic 
  data 
  have 
  been 
  lacking 
  can 
  now 
  be 
  determined 
  and 
  arranged 
  

   in 
  necessary 
  detail. 
  

  

  Dr. 
  E. 
  O. 
  Ulrich, 
  of 
  the 
  United 
  States 
  Geological 
  Survey, 
  spent 
  

   the 
  summer 
  of 
  1921 
  in 
  continuation 
  of 
  his 
  field 
  researches 
  on 
  the 
  

   early 
  Paleozoic 
  rocks 
  of 
  eastern 
  North 
  America, 
  and 
  previous 
  to 
  

   joining 
  Doctor 
  Bassler 
  in 
  Tennessee, 
  as 
  noted 
  above, 
  studied 
  the 
  

   Silurian 
  stratigraphy 
  of 
  Pennsylvania 
  and 
  Maryland. 
  Mr. 
  N. 
  H. 
  

   Boss 
  made 
  several 
  short 
  trips 
  collecting 
  in 
  the 
  Miocene 
  deposits 
  

  

  