﻿REPORT 
  OF 
  THE 
  SECRETARY. 
  31 
  

  

  Bolivia, 
  Chile, 
  and 
  Paraguay, 
  the 
  Bolivian 
  flora 
  being 
  particularly 
  

   well 
  represented. 
  

  

  Many 
  other 
  smaller 
  collections 
  were 
  received, 
  including 
  mammals 
  

   from 
  Alberta 
  and 
  plants 
  from 
  British 
  Columbia 
  collected 
  by 
  Sec- 
  

   retary 
  and 
  Mrs. 
  Walcott. 
  

  

  The 
  work 
  of 
  remedying 
  defects 
  in 
  the 
  biological 
  exhibition 
  has 
  

   been 
  practically 
  confined 
  to 
  the 
  mammal 
  halls. 
  Good 
  progress 
  has 
  

   been 
  made 
  in 
  routine 
  curatorial 
  and 
  preparatorial 
  work 
  in 
  the 
  

   various 
  collections, 
  but 
  everywhere 
  this 
  work 
  is 
  suffering 
  from 
  the 
  

   insufficiency 
  of 
  space 
  and 
  of 
  personnel. 
  

  

  Geology. 
  — 
  A 
  satisfactory 
  increase 
  in 
  the 
  geological 
  collections 
  is 
  

   noted, 
  although 
  the 
  accessions 
  number 
  slightly 
  less 
  than 
  last 
  year, 
  

   217, 
  with 
  an 
  aggregate 
  of 
  23,504 
  specimens 
  being 
  recorded. 
  

  

  Valuable 
  additions 
  were 
  made 
  to 
  the 
  collections 
  of 
  Bolivian 
  tin 
  

   and 
  tungsten 
  ores 
  by 
  Mr. 
  F. 
  L. 
  Hess 
  ; 
  rich 
  examples 
  of 
  carnotite 
  and 
  

   hewettite, 
  the 
  best 
  thus 
  far 
  found 
  in 
  the 
  United 
  States, 
  were 
  acquired 
  

   through 
  the 
  generosity 
  of 
  the 
  Standard 
  Chemical 
  Co., 
  Naturita, 
  

   Colo. 
  ; 
  and 
  large 
  uranophane-bearing 
  sandstone 
  specimens 
  were 
  pre- 
  

   sented 
  by 
  Mr. 
  John 
  J. 
  Bonner, 
  Lusk, 
  Wyo. 
  Gold 
  nuggets, 
  eight 
  in 
  

   number, 
  the 
  largest 
  weighing 
  4| 
  ounces, 
  from 
  the 
  Maxwell 
  Land 
  

   Grant, 
  N. 
  Mex., 
  were 
  donated 
  by 
  Dr. 
  Frank 
  Springer, 
  and 
  Hon. 
  

   Holm 
  O. 
  Bursum 
  presented 
  examples 
  of 
  torbernite, 
  a 
  radium-bearing 
  

   mineral 
  from 
  White 
  Signal, 
  N. 
  Mex. 
  Other 
  gifts 
  to 
  the 
  economic 
  

   collections 
  include 
  examples 
  of 
  diamond-bearing 
  rock 
  from 
  Pike 
  

   County, 
  Ark., 
  and 
  slabs 
  of 
  building 
  stones 
  supplied 
  by 
  various 
  

   dealers. 
  

  

  The 
  most 
  notable 
  addition 
  to 
  the 
  meteorite 
  collection 
  is 
  the 
  mag- 
  

   nificent 
  mass 
  of 
  iron 
  from 
  Owens 
  Galley, 
  Calif., 
  gift 
  of 
  Mr. 
  Lincoln 
  

   Ellsworth, 
  New 
  York 
  City. 
  Examples 
  of 
  other 
  falls 
  and 
  finds, 
  10 
  

   in 
  number, 
  either 
  new 
  to 
  the 
  collection 
  or 
  hitherto 
  poorly 
  represented, 
  

   were 
  acquired 
  chiefly 
  through 
  exchanges. 
  

  

  The 
  mineral 
  collections 
  were 
  benefited 
  through 
  gifts 
  which 
  in- 
  

   clude 
  at 
  least 
  three 
  exhibition 
  specimens. 
  Large 
  fine 
  crystals 
  of 
  

   colemanite, 
  donated 
  by 
  Mr. 
  W. 
  S. 
  Russell, 
  Los 
  Angeles, 
  an 
  attractive 
  

   specimen 
  of 
  cuprite 
  showing 
  deep 
  red 
  crystals 
  on 
  native 
  copper, 
  by 
  

   Dr. 
  R. 
  O. 
  Hall, 
  San 
  Jose, 
  Calif., 
  and 
  a 
  zoned 
  rhodenite 
  of 
  unusual 
  

   form, 
  by 
  Col. 
  Washington 
  A. 
  Roebling, 
  Trenton, 
  N. 
  J., 
  are 
  notable 
  

   among 
  these. 
  Valuable 
  foreign 
  minerals 
  were 
  acquirer! 
  through 
  

   exchange; 
  type 
  materials 
  were 
  transferred 
  by 
  the 
  United 
  States 
  

   Geological 
  Survey; 
  a 
  series 
  showing 
  the 
  effect 
  of 
  radium 
  rays 
  on 
  

   the 
  color 
  of 
  minerals, 
  beryl 
  crystals 
  from 
  Brazil, 
  and 
  examples 
  of 
  

   nesquehonite, 
  demantoid 
  garnet, 
  and 
  other 
  forms 
  from 
  Italy 
  were 
  

   acquired 
  by 
  purchase; 
  and 
  interesting 
  collections 
  were 
  made 
  in 
  the 
  

   field 
  by 
  the 
  assistant 
  curator. 
  Gems 
  of 
  beauty 
  and 
  value 
  have 
  

   been 
  added 
  to 
  the 
  Isaac 
  Lea 
  collection 
  through 
  its 
  endowment 
  fund, 
  

  

  