﻿PROCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  201 
  

  

  Series 
  A. 
  

   1, 
  Eggs 
  did 
  not 
  hatch 
  in 
  the 
  following 
  chemicals 
  : 
  — 
  

  

  Larvae 
  partially 
  hatched 
  and 
  died. 
  

  

  Tannin 
  

  

  Caustic 
  potash 
  . 
  

   Potassium 
  permanganate 
  

   Sodium 
  oxalate 
  . 
  

  

  3-2 
  

  

  0-6 
  

  

  0001 
  

  

  0-5 
  

  

  In 
  the 
  effects 
  of 
  the 
  above 
  solutions 
  employed 
  in 
  No. 
  1 
  and 
  2 
  experiments 
  there 
  is 
  

   not 
  much 
  difference, 
  I 
  have 
  found 
  that 
  if 
  sufficiently 
  developed 
  eggs 
  are 
  used 
  in 
  expt. 
  

   No. 
  2. 
  they 
  hatch 
  partially, 
  but 
  if 
  fresh 
  eggs 
  are 
  employed, 
  they 
  give 
  the 
  same 
  result 
  

   as 
  in 
  expt. 
  No 
  1 
  ; 
  that 
  is, 
  they 
  do 
  not 
  hatch. 
  

  

  3. 
  Larvae 
  hatched 
  but 
  died 
  instantaneously. 
  

  

  