﻿PROCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  197 
  

  

  in 
  our 
  views 
  with 
  regard 
  to 
  the 
  maternal 
  instinct 
  obtaining 
  in 
  this 
  

   species 
  of 
  mosquito. 
  

  

  * 
  " 
  A 
  preliminary 
  note 
  on 
  the 
  action 
  of 
  acids, 
  salts 
  and 
  alkalies 
  on 
  the 
  development 
  of 
  

   Ciilicid 
  eggs 
  and 
  larvae," 
  by 
  H. 
  N. 
  Sharma, 
  B.A. 
  

  

  Explanation 
  of 
  Graphs. 
  

  

  Series 
  1. 
  

  

  Stegomyia 
  albopicta 
  

  

  Cnlexfntigans 
  

  

  Anopheles 
  rossii 
  ......... 
  

  

  (?) 
  Culcx 
  sp. 
  

  

  The 
  vertical 
  line 
  represents 
  the 
  number 
  of 
  eggs 
  or 
  egg-masses 
  laid. 
  In 
  the 
  case 
  of 
  

   Stegomyia 
  albopicia 
  one-tenth 
  of 
  the 
  actual 
  number 
  of 
  eggs 
  laid 
  is 
  represented. 
  

  

  Seeies 
  2. 
  

  

  Stegomyia 
  albopicta 
  

   Cvlex 
  fatigans 
  

  

  The 
  horizontal 
  line 
  represents 
  the 
  number 
  of 
  eggs 
  or 
  egg-masses 
  laid. 
  The 
  vertical 
  

   lino 
  represents 
  percentages 
  of 
  the 
  sodium 
  salts 
  used, 
  which 
  are 
  ; 
  — 
  

   NaCl, 
  0-25, 
  0-6, 
  1, 
  2 
  ; 
  NaNo, 
  0-8 
  ; 
  Na^Noi, 
  1-4 
  ; 
  

   NaoSo4, 
  1-4; 
  Na.,S204, 
  2-5. 
  

  

  Against 
  the 
  percentage 
  of 
  1-4, 
  Na3Po4 
  is 
  indicated 
  by 
  Na,So4 
  is 
  indicated 
  byx 
  

   In 
  the 
  case 
  of 
  Stegomyia 
  albopictn 
  one-tenth 
  of 
  the 
  actual 
  number 
  of 
  eggs 
  laid 
  is 
  

   represented 
  

  

  Series 
  2{a). 
  

  

  Stegomyia 
  albopicta 
  

  

  Culex 
  fatigans 
  

  

  Anopheles 
  rossii 
  

  

  The 
  horizontal 
  line 
  represents 
  the 
  numlier 
  of 
  eggs 
  or 
  egg-masses 
  laid. 
  The 
  vertical 
  

  

  line 
  represents 
  the 
  percentages 
  of 
  Nad. 
  

   In 
  the 
  cases 
  of 
  Stegomyia 
  albopicta 
  and 
  Anopheles 
  rossii 
  one-tenth 
  of 
  the 
  actual 
  

  

  number 
  of 
  eggs 
  laid 
  is 
  represented. 
  

  

  Series 
  2(6). 
  

  

  Ste.qomyia 
  albopicta 
  ") 
  

  

  n 
  1 
  f 
  r 
  X 
  (NaCl) 
  ; 
  KCl) 
  . 
  

  

  CnUx 
  fatigans 
  ) 
  \ 
  i 
  ' 
  v 
  / 
  

  

  The 
  horizontal 
  line 
  represents 
  the 
  numl)cr 
  of 
  eggs 
  or 
  egg-masses 
  laid. 
  The 
  vertical 
  

   line 
  represents 
  the 
  percentages 
  of 
  the 
  salt, 
  which 
  arc 
  0-29, 
  0-58 
  and 
  0-74 
  (together 
  

   with 
  a 
  control). 
  

  

  In 
  tlic 
  case 
  of 
  Stegomyia 
  albopicta 
  one-tenth 
  of 
  the 
  actual 
  number 
  of 
  eggs 
  laid 
  is 
  re- 
  

   presented. 
  

  

  O 
  

  

  