﻿ACKNOWLEDGMENTS 
  

  

  The 
  author 
  wishes 
  to 
  acknowledge 
  the 
  genuine 
  and 
  encouraging 
  interest 
  in 
  

   the 
  progress 
  of 
  this 
  report 
  by 
  molhiscan 
  workers 
  on 
  the 
  West 
  Coast 
  since 
  the 
  an- 
  

   nouncement 
  of 
  its 
  initiation 
  in 
  1945. 
  Their 
  persistent 
  but 
  understanding 
  inquiries 
  

   as 
  to 
  its 
  progress 
  have 
  been 
  a 
  stimulation. 
  

  

  Thanks 
  are 
  extended 
  to 
  the 
  American 
  Philosophical 
  Society 
  for 
  financial 
  help 
  

   (Grant 
  No. 
  788) 
  in 
  connection 
  with 
  the 
  accumulation 
  of 
  data 
  and 
  to 
  Waldo 
  

   Schmitt 
  and 
  authorities 
  of 
  the 
  U. 
  S. 
  National 
  Museum 
  for 
  providing 
  the 
  photo- 
  

   graphic 
  negatives 
  of 
  the 
  types 
  of 
  Carpenter 
  West 
  Coast 
  species 
  in 
  the 
  Division 
  of 
  

   MoUusca. 
  Those 
  negatives 
  have 
  been 
  placed 
  on 
  file 
  in 
  that 
  division. 
  The 
  authori- 
  

   ties 
  of 
  the 
  British 
  Museum 
  ( 
  Natural 
  History) 
  , 
  Zoology 
  Division, 
  have 
  generously 
  

   presented 
  photographs 
  of 
  the 
  types 
  of 
  the 
  species 
  in 
  that 
  institution. 
  

  

  Splendid 
  co-operation 
  has 
  been 
  given 
  by 
  all 
  the 
  institutions 
  and 
  their 
  staffs 
  

   who 
  have 
  been 
  connected 
  with 
  the 
  study 
  of 
  the 
  Carpenter 
  material. 
  The 
  writer 
  is 
  

   happy 
  to 
  extend 
  grateful 
  thanks 
  to 
  each 
  of 
  them 
  : 
  

  

  T. 
  H. 
  Clark, 
  Mrs. 
  Alice 
  Johannson 
  Turnham, 
  J. 
  D. 
  Cleghorn, 
  Vicente 
  Conde, 
  

   J. 
  W. 
  Pollack, 
  and 
  Harold 
  Coletta, 
  Redpath 
  Museum, 
  McGill 
  University; 
  Lovell 
  

   G. 
  Mickles, 
  Montreal, 
  Canada 
  ; 
  Paul 
  Bartsch, 
  Harald 
  Rehder, 
  and 
  Joseph 
  P. 
  E. 
  

   Morrison, 
  U. 
  S. 
  National 
  Museum 
  ; 
  H. 
  A. 
  Pilsbry, 
  John 
  Dyas 
  Parker, 
  and 
  Mrs. 
  

   Venia 
  Phillips, 
  Academy 
  of 
  Natural 
  Sciences 
  of 
  Philadelphia; 
  W. 
  J. 
  Rees, 
  the 
  

   late 
  G. 
  L. 
  Wilkins, 
  and 
  A. 
  C. 
  Townsend, 
  British 
  Museum 
  (Natural 
  History) 
  ; 
  

   Carl 
  E. 
  Guthe 
  and 
  Alvin 
  G. 
  Whitney, 
  New 
  York 
  State 
  Museum 
  ; 
  William 
  J. 
  

   Clench, 
  R. 
  Tucker 
  Abbott 
  (formerly), 
  and 
  Ruth 
  D. 
  Turner, 
  Museum 
  of 
  Com- 
  

   parative 
  Zoology, 
  Harvard 
  University 
  ; 
  J. 
  Wyatt 
  Durham 
  and 
  William 
  K. 
  Emer- 
  

   son, 
  University 
  of 
  California 
  : 
  Fritz 
  Haas, 
  Chicago 
  Natural 
  History 
  Museum 
  ; 
  

   Howard 
  K. 
  Gloyd, 
  Chicago 
  Academy 
  of 
  Sciences 
  ; 
  A. 
  Myra 
  Keen, 
  Stanford 
  Uni- 
  

   versity; 
  John 
  C. 
  Armstrong 
  and 
  Frederick 
  V. 
  Weir, 
  American 
  Museum 
  of 
  

   Natural 
  History; 
  W. 
  Storrs 
  Cole, 
  Cornell 
  University; 
  John 
  Q. 
  Burch, 
  editor. 
  

   Minutes 
  of 
  the 
  Conchological 
  Club 
  of 
  Southern 
  California 
  ; 
  J. 
  R. 
  le 
  B. 
  Tomlin, 
  St. 
  

   Leonards-on-Sea, 
  Sussex, 
  England 
  ; 
  Miss 
  Mary 
  B. 
  Cobb, 
  Boston 
  Society 
  of 
  Na- 
  

   tural 
  History; 
  Miss 
  J. 
  M. 
  Tharpe 
  and 
  Miss 
  Frances 
  Lauman, 
  reference 
  librarians 
  

   of 
  Cornell 
  University. 
  Thanks 
  are 
  due 
  Mr. 
  J. 
  F. 
  Ogle-Skan 
  of 
  Manchester, 
  Eng- 
  

   land, 
  and 
  J. 
  R. 
  Rimmer, 
  Municipal 
  Museum 
  and 
  Art 
  Gallery, 
  Warrington, 
  

   England. 
  H. 
  A. 
  Pilsbry 
  and 
  Joshua 
  L. 
  Baily, 
  Jr., 
  have 
  read 
  the 
  manuscript 
  and 
  

   have 
  been 
  generous 
  in 
  their 
  recommendations 
  for 
  publication. 
  

  

  The 
  photograph 
  of 
  Philip 
  Carpenter 
  (frontispiece) 
  is 
  a 
  copy 
  of 
  an 
  enlarged 
  

   one 
  in 
  the 
  Redpath 
  Museum. 
  A 
  similar 
  photo 
  is 
  in 
  the 
  Mollusca 
  Division, 
  Mu- 
  

   seum 
  of 
  Comparative 
  Zoology 
  ; 
  two 
  other 
  pictures 
  of 
  Carpenter 
  are 
  in 
  the 
  latter 
  

   institution. 
  The 
  writer 
  wishes 
  to 
  thank 
  the 
  authorities 
  of 
  both 
  institutions 
  for 
  the 
  

   privilege 
  of 
  having 
  copies 
  made. 
  

  

  The 
  librarian 
  of 
  the 
  University 
  of 
  California 
  also 
  allowed 
  a 
  microfilm 
  made 
  

   of 
  the 
  manuscript 
  of 
  West 
  Coast 
  concholog}' 
  by 
  J. 
  G. 
  Cooper 
  which 
  is 
  in 
  the 
  li- 
  

   brary 
  of 
  the 
  University 
  of 
  California. 
  

  

  