﻿296 
  JOURNAL 
  OF 
  THE 
  WASHINGTON 
  ACADEMY 
  OF 
  SCIENCES 
  VOIv. 
  12, 
  NO. 
  12 
  

  

  refractivities 
  it 
  appears 
  that 
  their 
  peculiar 
  structures 
  lead 
  to 
  a 
  definite 
  

   extra 
  refractivity, 
  greater 
  in 
  the 
  case 
  of 
  the 
  less 
  symmetrical 
  fumarate. 
  

  

  PROCEEDINGS 
  OF 
  THE 
  ACADEMY 
  AND 
  AFFILIATED 
  

  

  SOCIETIES 
  

  

  BIOLOGICAL 
  SOCIETY 
  

   632d 
  MEETING 
  

  

  The 
  632d 
  meeting 
  of 
  the 
  Biological 
  Society 
  was 
  held 
  in 
  the 
  auditorium 
  of 
  

   the 
  National 
  Museum, 
  at 
  8 
  p.m., 
  on 
  Jan. 
  4, 
  1922, 
  in 
  cooperation 
  with 
  the 
  

   Audubon 
  Society 
  and 
  the 
  Wild 
  Flower 
  Preservation 
  Society, 
  with 
  Presi- 
  

   dent 
  Bailey 
  in 
  the 
  chair. 
  Mr. 
  Stephen 
  T. 
  Mather, 
  of 
  the 
  National 
  Park 
  

   Service, 
  introduced 
  the 
  speaker 
  of 
  the 
  evening, 
  Mr. 
  Arthur 
  C. 
  Pillsbury, 
  

   official 
  photographer 
  of 
  the 
  Yosemite 
  National 
  Park. 
  

  

  Mr. 
  Pillsbury's 
  subject 
  was 
  Wild 
  flowers 
  and 
  birds 
  of 
  Yosemite 
  National 
  

   Park. 
  It 
  was 
  illustrated 
  with 
  moving 
  pictures 
  showing 
  birds, 
  flowers, 
  and 
  

   scenery 
  of 
  Yosemite 
  Park. 
  A 
  striking 
  feature 
  was 
  the 
  exhibition 
  of 
  some 
  

   twenty 
  or 
  more 
  series 
  of 
  pictures 
  showing 
  the 
  opening 
  of 
  the 
  buds 
  of 
  as 
  

   many 
  different 
  kinds 
  of 
  flowers; 
  the 
  exposures 
  were 
  taken 
  at 
  fifteen 
  min- 
  

   ute 
  intervals, 
  so 
  that 
  as 
  projected 
  on 
  the 
  screen 
  the 
  opening 
  was 
  accelerated 
  

   several 
  thousand 
  times. 
  

  

  633d 
  meeting 
  

  

  The 
  633d 
  meeting 
  of 
  the 
  Biological 
  Society 
  was 
  held 
  in 
  the 
  lecture 
  hall 
  of 
  

   the 
  Cosmos 
  Club 
  on 
  Jan. 
  21, 
  1922, 
  with 
  President 
  BailEy 
  in 
  the 
  chair. 
  

  

  The 
  following 
  persons 
  were 
  elected 
  members: 
  Miss 
  Lucy 
  Howard, 
  Har- 
  

   old 
  M. 
  Vars, 
  Herbert 
  F. 
  Prytherch, 
  and 
  Arthur 
  H. 
  Fisher. 
  The 
  

   President 
  appointed 
  Messrs. 
  Rohwer, 
  Jackson, 
  Chambliss, 
  and 
  Coker 
  

   as 
  a 
  Committee 
  on 
  communications. 
  

  

  Under 
  general 
  notes. 
  Dr. 
  R. 
  W. 
  ShuFELDT 
  exhibited 
  a 
  new 
  biography 
  of 
  

   the 
  well 
  known 
  British 
  ornithologist 
  Alfred 
  NewTON, 
  by 
  Wollaston. 
  

   Dr. 
  ShufeldT 
  showed 
  lantern 
  slides 
  of 
  Professor 
  Newton 
  from 
  several 
  pictures, 
  

   also 
  some 
  other 
  slides 
  illustrating 
  the 
  biography. 
  

  

  Mr. 
  Hoffman 
  showed 
  a 
  specimen 
  of 
  Attacus 
  edwardsii, 
  one 
  of 
  the 
  largest 
  

   known 
  moths, 
  from 
  India. 
  

  

  Major 
  Goldman 
  reported 
  having 
  attended 
  an 
  organization 
  meeting 
  of 
  

   the 
  Boston 
  Bird-Banding 
  Society, 
  which 
  recently 
  occurred. 
  

  

  Mr. 
  Williams 
  reported 
  hundreds 
  of 
  starlings 
  congregating 
  and 
  roosting 
  on 
  

   the 
  Hughes 
  Building 
  near 
  the 
  Cosmos 
  Club, 
  as 
  many 
  as 
  400 
  or 
  500, 
  he 
  esti- 
  

   mated. 
  They 
  seem 
  to 
  chirp 
  all 
  night. 
  

  

  The 
  following 
  program 
  was 
  given: 
  

  

  S. 
  F. 
  HiLDEBRAND 
  : 
  Fish 
  in 
  relation 
  to 
  mosquito 
  control. 
  

  

  The 
  speaker 
  had 
  been 
  employed 
  in 
  the 
  summer 
  of 
  1921 
  to 
  introduce 
  fish 
  

   into 
  mosquito-breeding 
  waters 
  about 
  Savannah, 
  Ga. 
  

  

  The 
  top 
  minnow, 
  Gamhusia 
  affinis, 
  is 
  altogether 
  the 
  best 
  fish 
  for 
  introduc- 
  

   tion, 
  although 
  all 
  small 
  fish 
  will 
  feed 
  on 
  mosquito 
  larvae 
  under 
  favorable 
  con- 
  

   ditions. 
  The 
  top 
  minnow 
  is 
  viviparous, 
  hence 
  does 
  not 
  have 
  complicated 
  

   nesting 
  habits 
  to 
  be 
  taken 
  into 
  consideration. 
  It 
  is 
  a, 
  prolific 
  and 
  hardy 
  fish 
  

   and 
  never 
  outgrows 
  the 
  mosquito-eating 
  size. 
  With 
  the 
  aid 
  of 
  a 
  large 
  number 
  

   of 
  lantern 
  slides 
  the 
  speaker 
  discussed 
  the 
  effect 
  of 
  various 
  kinds 
  of 
  vegeta- 
  

  

  