﻿Botany. 
  245 
  

  

  which 
  has 
  not 
  been 
  submitted 
  to 
  thorough 
  examination 
  as 
  regards 
  

   all 
  possible 
  points 
  of 
  doubt, 
  and, 
  hence, 
  the 
  illustrations 
  of 
  Cryp- 
  

   togamia 
  will 
  doubtless 
  prove 
  generally 
  satisfactory. 
  More 
  than 
  

   one 
  hundred 
  of 
  these 
  models 
  are 
  now 
  in 
  possession 
  of 
  the 
  Uni- 
  

   versity, 
  but 
  they 
  are 
  not 
  at 
  present 
  on 
  exhibition, 
  being 
  withheld 
  

   until 
  the 
  completion 
  of 
  the 
  proposed 
  series 
  of 
  types. 
  With 
  the 
  

   exception 
  of 
  a 
  few 
  very 
  large 
  specimens, 
  all 
  of 
  the 
  models 
  of 
  

   flowering 
  plants 
  are 
  now 
  installed 
  for 
  exhibition. 
  g. 
  l. 
  g. 
  

  

  2. 
  3fo?iograph 
  of 
  the 
  Mycetozoa 
  ; 
  by 
  Arthur 
  Lester, 
  F.Z.S. 
  

   London, 
  1894, 
  8vo, 
  pp. 
  224, 
  PI. 
  78 
  and 
  51 
  woodcuts. 
  — 
  The 
  present 
  

   monograph 
  printed 
  by 
  order 
  of 
  the 
  Trustees 
  of 
  the 
  British 
  

   Museum 
  is 
  the 
  most 
  important 
  descriptive 
  work 
  on 
  Mycetozoa 
  

   which 
  has 
  appeared 
  since 
  the 
  publication 
  of 
  Rostafinski's 
  mono- 
  

   graph 
  on 
  the 
  order 
  in 
  1875. 
  That 
  work, 
  although 
  written 
  in 
  

   Polish 
  and 
  therefore 
  inaccessible 
  to 
  most 
  botanists 
  except 
  in 
  the 
  

   partial 
  translations 
  and 
  extracts 
  given 
  in 
  the 
  writings 
  of 
  Cooke, 
  

   Schroeter 
  and 
  Berlese, 
  served 
  greatly 
  to 
  stimulate 
  the 
  interest 
  of 
  

   botanists 
  in 
  both 
  Europe 
  and 
  America 
  in 
  the 
  systematic 
  study 
  of 
  

   these 
  anomalous 
  growths 
  on 
  the 
  border-line 
  between 
  the 
  animal 
  

   and 
  vegetable 
  kingdoms. 
  The 
  result 
  was 
  the 
  publication 
  of 
  

   numerous 
  articles 
  and 
  monographs 
  by 
  the 
  botanists 
  of 
  both 
  conti- 
  

   nents 
  but 
  until 
  now 
  there 
  has 
  been 
  no 
  satisfactory 
  critical 
  general 
  

   revision 
  reducing 
  to 
  a 
  solid 
  basis 
  the 
  many 
  scattered 
  facts 
  and 
  

   descriptions. 
  Mr. 
  Lester's 
  Monograph 
  purports 
  to 
  be 
  only 
  "a 
  

   descriptive 
  catalogue 
  of 
  the 
  species 
  in 
  the 
  Herbarium 
  of 
  the 
  

   British 
  Museum 
  " 
  but 
  it 
  is 
  much 
  more 
  than 
  that. 
  It 
  is 
  in 
  fact 
  a 
  

   general 
  monograph 
  including 
  descriptions 
  of 
  all 
  known 
  species, 
  

   those 
  of 
  species 
  not 
  represented 
  in 
  the 
  collections 
  of 
  the 
  author 
  

   and 
  the 
  British 
  Museum 
  being 
  quoted 
  from 
  the 
  original 
  sources 
  

   often 
  with 
  critical 
  notes. 
  

  

  Mr. 
  Lester's 
  well 
  known 
  studies 
  on 
  the 
  development 
  and 
  cyto- 
  

   logical 
  peculiarities 
  of 
  Mycetozoa 
  have 
  contributed 
  to 
  give 
  addi- 
  

   tional 
  value 
  to 
  his 
  more 
  strictly 
  systematic 
  work 
  and 
  prevented 
  

   his 
  attaching 
  undue 
  weight 
  to 
  the 
  trivial 
  and 
  accidental 
  characters 
  

   on 
  which 
  systematists 
  are 
  often 
  inclined 
  to 
  depend. 
  In 
  the 
  prepa- 
  

   ration 
  of 
  his 
  work 
  he 
  has 
  made 
  extensive 
  studies 
  in 
  the 
  field, 
  cor- 
  

   responded 
  with 
  specialists 
  all 
  over 
  the 
  world 
  and 
  examined 
  the 
  

   types 
  in 
  British 
  and 
  Continental 
  collections. 
  Probably 
  no 
  other 
  

   botanist 
  has 
  ever 
  had 
  so 
  much 
  or 
  so 
  good 
  material 
  of 
  the 
  kind 
  

   pass 
  through 
  his 
  hands. 
  In 
  the 
  presentation 
  of 
  his 
  subject 
  the 
  

   author 
  has 
  shown 
  great 
  clearness 
  and 
  good 
  judgment 
  as 
  well 
  as 
  

   extensive 
  knowledge 
  and 
  where 
  he 
  differs 
  from 
  other 
  writers 
  he 
  

   is 
  courteous 
  as 
  well 
  as 
  candid. 
  

  

  The 
  Introduction 
  gives 
  an 
  admirable 
  summary 
  of 
  the 
  life 
  his- 
  

   tory 
  of 
  the 
  order 
  including 
  some 
  original 
  matter 
  especially 
  relat- 
  

   ing 
  to 
  the 
  development 
  of 
  Ceratiomyxa. 
  He 
  includes 
  Ceratiomyxa 
  

   in 
  the 
  subclass 
  Exosporese 
  following 
  Rostafinski 
  and 
  De 
  Bary 
  

   although 
  admitting 
  that 
  the 
  subclass 
  is 
  in 
  some 
  important 
  

   respects 
  unlike 
  the 
  rest 
  of 
  the 
  order 
  but 
  he 
  does 
  not 
  include 
  the 
  

   numerous 
  monad-like 
  forms 
  classed 
  by 
  Zopt 
  with 
  Mycetozoa. 
  

  

  