﻿32 
  ANNUAL, 
  REPORT 
  SMITHSONIAN 
  INSTITUTION, 
  1922. 
  

  

  including 
  a 
  series 
  of 
  uncut 
  diamonds 
  from 
  the 
  mines 
  of 
  the 
  Arkansas 
  

   Diamond 
  Corporation, 
  Murfreesboro, 
  Ark.; 
  a 
  unique 
  cut 
  gem 
  of 
  

   orthoclase 
  from 
  Madagascar; 
  a 
  blue 
  zircon 
  from 
  Australia; 
  and 
  a 
  

   series 
  of 
  fresh-water 
  pearls 
  from 
  the 
  rivers 
  of 
  the 
  Mississippi 
  Valley. 
  

   A 
  number 
  of 
  individual 
  gifts 
  are 
  also 
  recorded. 
  

  

  Paleontological 
  material 
  was 
  received 
  from 
  Mexico, 
  Central 
  and 
  

   South 
  America, 
  India, 
  and 
  several 
  European 
  localities, 
  these 
  being 
  

   chiefly 
  Mesozoic 
  and 
  Cenozoic, 
  while 
  numerous 
  collections 
  from 
  

   Paleozoic 
  rocks 
  of 
  the 
  United 
  States 
  and 
  Canada 
  were 
  made 
  by 
  the 
  

   curator 
  or 
  presented 
  by 
  interested 
  friends. 
  Unusually 
  well 
  pre- 
  

   served 
  cetacean 
  remains 
  obtained 
  in 
  the 
  Miocene 
  deposits 
  along 
  

   Chesapeake 
  Bay 
  ; 
  valuable 
  reptilian 
  material 
  acquired 
  by 
  exchanges 
  ; 
  

   skulls 
  and 
  bones 
  of 
  extinct 
  buffaloes, 
  presented 
  by 
  the 
  John 
  A. 
  

   Savage 
  Co., 
  Crosby, 
  Minn.; 
  and 
  remains 
  of 
  the 
  Beresovka 
  mam- 
  

   moth, 
  are 
  among 
  the 
  notable 
  accessions 
  of 
  vertebrate 
  material. 
  

  

  Mineral 
  and 
  mecha?vical 
  technology. 
  — 
  In 
  the 
  division 
  of 
  mineral 
  

   technology 
  attention 
  was 
  confined 
  entirely 
  to 
  a 
  more 
  permanent 
  

   and 
  complete 
  arrangement 
  of 
  the 
  exhibits 
  already 
  on 
  hand, 
  and 
  

   new 
  material 
  consisted 
  chiefly 
  of 
  photographic 
  transparencies 
  which 
  

   were 
  installed 
  in 
  the 
  respective 
  exhibits 
  to 
  which 
  they 
  referred. 
  

   Apart 
  from 
  this 
  work, 
  the 
  division 
  was 
  chiefly 
  engaged 
  in 
  coopera- 
  

   tive 
  educational 
  work 
  with 
  the 
  Pennsylvania 
  State 
  Board 
  of 
  Edu- 
  

   cation 
  through 
  Mr. 
  Samuel 
  S. 
  Wyer, 
  of 
  Columbus, 
  Ohio. 
  The 
  

   plans 
  of 
  the 
  State 
  Educational 
  Board 
  call 
  for 
  revision 
  of 
  the 
  sev- 
  

   enth-grade 
  geography 
  course 
  to 
  include 
  the 
  study 
  of 
  the 
  State's 
  

   mineral 
  resources. 
  The 
  extent 
  of 
  the 
  division's 
  cooperation 
  may 
  

   be 
  judged 
  from 
  the 
  fact 
  that 
  it 
  has 
  supplied 
  a 
  considerable 
  amount 
  

   of 
  the 
  data 
  for 
  text 
  and 
  illustrations 
  from 
  the 
  models 
  of 
  the 
  many 
  

   mineral 
  industries 
  exhibited 
  in 
  the 
  Museum. 
  

  

  The 
  division 
  of 
  mechanical 
  technology 
  was 
  extremely 
  busy, 
  pri- 
  

   marily, 
  in 
  regrouping 
  its 
  collections 
  and 
  rearranging 
  objects 
  in 
  the 
  

   collections 
  so 
  as 
  to 
  tell 
  a 
  story 
  rather 
  than 
  merely 
  represent 
  a 
  

   period 
  in 
  development, 
  in 
  an 
  endeavor 
  to 
  impress 
  the 
  student 
  with 
  

   the 
  significance 
  of 
  the 
  material 
  rather 
  than 
  its 
  mere 
  existence; 
  

   and, 
  secondarily, 
  through 
  the 
  receipt 
  of 
  over 
  100 
  per 
  cent 
  more 
  

   objects 
  than 
  were 
  received 
  the 
  preceding 
  year. 
  In 
  the 
  line 
  of 
  

   special 
  investigations, 
  those 
  inaugurated 
  last 
  year, 
  particularly 
  with 
  

   regard 
  to 
  the 
  developments 
  in 
  aeronautical 
  engineering, 
  were 
  con- 
  

   tinued. 
  

  

  Textiles, 
  wood 
  technology, 
  foods, 
  and 
  medicine. 
  — 
  The 
  collections 
  

   under 
  the 
  supervision 
  of 
  the 
  curator 
  of 
  textiles, 
  which, 
  besides 
  

   textiles, 
  embrace 
  wood 
  technology, 
  food, 
  medicine, 
  and 
  miscellaneous 
  

   organic 
  products, 
  were 
  increased 
  by 
  many 
  gifts 
  and 
  by 
  transfer 
  

   and 
  loan 
  of 
  property 
  from 
  other 
  Government 
  bureaus 
  amounting 
  

   to 
  nearly 
  3,000 
  objects. 
  The 
  most 
  important 
  of 
  these 
  are 
  as 
  follows: 
  

  

  