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  Xvi 
  ) 
  

  

  it 
  is 
  in 
  the 
  form 
  of 
  a 
  very 
  loose 
  and 
  open 
  frame-work 
  which 
  

   is 
  first 
  constructed, 
  and 
  serves 
  as 
  a 
  foundation 
  for 
  the 
  paste 
  

   which 
  is 
  poured 
  out 
  upon 
  it. 
  The 
  calcium 
  oxalate 
  is 
  secreted 
  

   by 
  the 
  malpighian 
  tubules 
  of 
  the 
  larva, 
  and 
  is 
  in 
  all 
  pro- 
  

   bability 
  poured 
  out 
  from 
  the 
  anus. 
  Dissected 
  specimens 
  of 
  

   mature 
  larvae 
  which 
  had 
  not 
  yet 
  spun 
  their 
  cocoons 
  

   were 
  also 
  exhibited, 
  and 
  it 
  was 
  seen 
  that 
  the 
  malpighian 
  

   tubules 
  were 
  injected 
  with 
  a 
  chalky 
  secretion, 
  the 
  calcium 
  

   oxalate. 
  

  

  Mr. 
  W. 
  H. 
  Blandford 
  called 
  attention 
  to 
  the 
  fact 
  that 
  the 
  

   larvffi 
  of 
  Liparis 
  monacha 
  remained 
  in 
  small 
  groups 
  on 
  the 
  

   bark 
  of 
  the 
  tree 
  for 
  about 
  a 
  week 
  after 
  emerging 
  from 
  the 
  

   eggs, 
  and 
  that 
  this 
  fact 
  was 
  taken 
  advantage 
  of 
  by 
  the 
  

   German 
  foresters 
  to 
  destroy 
  them. 
  Also 
  that 
  he 
  had 
  himself 
  

   verified 
  the 
  statement 
  that 
  uric 
  acid 
  can 
  be 
  detected 
  in 
  the 
  

   malpighian 
  tubes 
  ot 
  insects. 
  Mr. 
  M'Lachlan 
  agreed 
  that 
  the 
  

   demonstration 
  that 
  the 
  malpighian 
  tubes 
  were 
  of 
  the 
  nature 
  

   of 
  renal 
  organs 
  was 
  now 
  satisfactory. 
  

  

  Mr. 
  C. 
  J. 
  Gahan 
  exhibited 
  two 
  species 
  of 
  Coleoptera 
  that 
  

   he 
  considered 
  to 
  possess 
  a 
  mimetic 
  resemblance, 
  viz. 
  Esthjmena 
  

   chinensis, 
  one 
  of 
  the 
  HispidcB, 
  and 
  a 
  nondescript 
  Lamiid 
  allied 
  

   to 
  Pemptolasius. 
  He 
  called 
  attention 
  to 
  a 
  peculiar 
  structure 
  

   of 
  the 
  antennae 
  in 
  the 
  latter 
  by 
  which 
  the 
  resemblance 
  was 
  

   increased. 
  

  

  Mr. 
  Tutt 
  exhibited 
  a 
  hybrid 
  between 
  Amphidasis 
  prodromaria 
  

   and 
  A. 
  hetularia, 
  obtained 
  by 
  Dr. 
  Chapman. 
  Mr. 
  Stainton 
  

   commented 
  on 
  the 
  fact 
  that 
  the 
  two 
  insects 
  appeared 
  at 
  

   different 
  times 
  ; 
  and 
  Mr. 
  Tutt 
  stated 
  that 
  the 
  A. 
  hetularia 
  had 
  

   been 
  subjected 
  to 
  forcing, 
  so 
  as 
  to 
  cause 
  it 
  to 
  emerge 
  at 
  the 
  

   same 
  time 
  as 
  A. 
  prodromaria. 
  

  

  Mr. 
  Tutt 
  also 
  exhibited 
  forms 
  of 
  Caradrina, 
  some 
  of 
  which 
  

   he 
  said 
  were 
  considered 
  distinct 
  on 
  the 
  Continent, 
  though 
  

   they 
  were 
  not 
  recognised 
  as 
  such 
  in 
  this 
  country, 
  viz. 
  Cara- 
  

   drina 
  taraxaci 
  [hlanda), 
  C. 
  supersWs, 
  Tr., 
  from 
  Sligo, 
  and 
  C. 
  

   superstes, 
  H.-S., 
  considered 
  as 
  synonymous 
  with 
  supcrstcs, 
  Tr., 
  

   but 
  apparently 
  more 
  closely 
  allied 
  to 
  C. 
  andiiijua. 
  

  

  Mr. 
  Bristowe 
  exhibited 
  varieties 
  of 
  Arvtia 
  mentliastri, 
  some 
  

   of 
  which 
  had 
  been 
  fed 
  on 
  mulberry 
  and 
  others 
  on 
  walnut 
  ; 
  no 
  

   difference 
  was 
  observed 
  in 
  the 
  variation. 
  

  

  