﻿REPORT 
  OF 
  THE 
  SECRETARY. 
  37 
  

  

  director 
  and 
  during 
  the 
  last 
  3 
  of 
  the 
  10 
  months 
  of 
  the 
  expedition 
  

   was 
  in 
  charge, 
  on 
  account 
  of 
  the 
  illness 
  of 
  Doctor 
  Rushy. 
  

  

  Dr. 
  Paul 
  Bartsch 
  continued 
  his 
  experiments 
  in 
  heredity 
  on 
  ia,«d 
  

   mollusks 
  of 
  the 
  genus 
  Cerion, 
  under 
  the 
  joint 
  auspices 
  of 
  the 
  Smith- 
  

   sonian 
  Institution 
  and 
  the 
  Carnegie 
  Institution, 
  of 
  Washington. 
  He 
  

   has 
  been 
  working 
  upon 
  a 
  survey 
  of 
  the 
  distribution 
  of 
  the 
  native 
  

   species 
  in 
  the 
  Florida 
  Keys. 
  By 
  the 
  use 
  of 
  a 
  seaplane, 
  detailed 
  for 
  

   the 
  purpose 
  by 
  the 
  Navy 
  Department, 
  Doctor 
  Bartsch 
  was 
  able 
  in 
  

   four 
  days 
  to 
  fly 
  at 
  low 
  altitude 
  over 
  the 
  ontire 
  region 
  and 
  note 
  on 
  

   charts 
  all 
  the 
  visible 
  grass 
  plots 
  — 
  the 
  habitat 
  of 
  the 
  Cerions. 
  It 
  will 
  

   now 
  be 
  possible 
  by 
  means 
  of 
  the 
  charts 
  to 
  examine 
  the 
  native 
  colonies 
  

   without 
  loss 
  of 
  time 
  in 
  locating 
  them. 
  Mr. 
  John 
  B. 
  Henderson, 
  

   Regent 
  of 
  the 
  Smithsonian 
  Institution, 
  made 
  a 
  rather 
  hurried 
  trip 
  

   to 
  Jamaica 
  to 
  personally 
  collect 
  living 
  specimens 
  of 
  the 
  Helicid 
  

   genus 
  Thysanophora 
  for 
  anatomical 
  study 
  toward 
  a 
  proposed 
  mono- 
  

   graph 
  of 
  the 
  group. 
  This 
  little 
  expedition 
  proved 
  unusually 
  success- 
  

   ful 
  and 
  of 
  great 
  benefit 
  to 
  the 
  work 
  in 
  hand, 
  as 
  well 
  as 
  to 
  the 
  mollusk 
  

   collections. 
  

  

  Mr. 
  Paul 
  C. 
  Standley 
  carried 
  on 
  botanical 
  exploration 
  in 
  Central 
  

   America, 
  through 
  cooperation 
  with 
  the 
  Gray 
  Herbarium, 
  the 
  New 
  

   York 
  Botanical 
  Garden, 
  the 
  Bureau 
  of 
  Plant 
  Industry 
  of 
  the 
  Depart- 
  

   ment 
  of 
  Agriculture, 
  and 
  Mr. 
  Oakes 
  Ames, 
  the 
  latter 
  being 
  interested 
  

   in 
  the 
  orchids 
  of 
  this 
  region. 
  About 
  five 
  months 
  were 
  spent 
  in 
  E] 
  

   Salvador, 
  and 
  nearly 
  a 
  month 
  in 
  Guatemala. 
  The 
  collections, 
  over 
  

   6,000 
  botanical 
  specimens, 
  will 
  be 
  divided 
  among 
  the 
  contributing 
  

   institutions. 
  

  

  Another 
  botanical 
  expedition 
  was 
  in 
  the 
  field 
  at 
  the 
  close 
  of 
  the 
  

   year. 
  Dr. 
  F. 
  W. 
  Pennell. 
  of 
  the 
  Philadelphia 
  Academy 
  of 
  Natural 
  

   Sciences, 
  accompanied 
  by 
  Mrs. 
  Pennell, 
  and 
  Mr. 
  E. 
  P. 
  Killip. 
  of 
  thp 
  

   Museum, 
  is 
  conducting 
  a 
  six 
  months' 
  exploration 
  of 
  western 
  Colombia, 
  

   on 
  behalf 
  of 
  the 
  Gray 
  Herbarium, 
  the 
  New 
  York 
  Botanical 
  Garden, 
  

   the 
  Philadelphia 
  Academy 
  of 
  Natural 
  Sciences, 
  and 
  the 
  Museum. 
  

   Mr. 
  Oakes 
  Ames 
  is 
  contributing 
  also 
  to 
  the 
  expense 
  of 
  the 
  expedition. 
  

   This 
  is 
  one 
  of 
  a 
  series 
  toward 
  a 
  complete 
  study 
  of 
  the 
  flora 
  of 
  north- 
  

   ern 
  South 
  America. 
  

  

  The 
  biological 
  expedition 
  alluded 
  to 
  as 
  the 
  only 
  one 
  under 
  the 
  

   exclusive 
  control 
  of 
  the 
  Museum 
  was 
  a 
  trip 
  to 
  the 
  interior 
  of 
  Alaska 
  

   undertaken 
  by 
  Dr. 
  John 
  M. 
  Aldrich, 
  associate 
  curator 
  of 
  insects. 
  

   The 
  Alaska 
  Engineering 
  Commission 
  of 
  the 
  Department 
  of 
  the 
  In- 
  

   terior 
  furnished 
  Doctor 
  Aldrich 
  with 
  horses 
  and 
  their 
  subsistence 
  and 
  

   with 
  transportation 
  on 
  the 
  Alaskan 
  Railroad. 
  About 
  10,000 
  speci- 
  

   mens 
  were 
  collected, 
  consisting 
  mainly 
  of 
  Diptera 
  and 
  Hymenoptera. 
  

   with 
  a 
  fair 
  number 
  of 
  Hemiptera. 
  

  

  The 
  expedition 
  of 
  the 
  Museum 
  of 
  the 
  American 
  Indian 
  (Heye 
  

   Foundation) 
  to 
  New 
  Mexico 
  under 
  Mr. 
  F. 
  W. 
  Hodge 
  furnished 
  

   55379—24 
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