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  1 
  890. 
  J 
  BOTANICAL 
  GAZETTE. 
  2 
  I 
  "J 
  

  

  Messrs. 
  D. 
  C. 
  Worcester 
  and 
  F. 
  S. 
  Bowmer, 
  recently 
  of 
  the 
  Univer- 
  

   sity 
  of 
  Michigan, 
  left 
  July 
  22d 
  for 
  the 
  Philippine 
  Islands, 
  where, 
  through 
  

   the 
  large 
  liberaUty 
  of 
  L. 
  F. 
  Menage, 
  of 
  Minneapolis, 
  they 
  will 
  spend 
  two 
  

   yearsin 
  the 
  collection 
  of 
  scientific 
  material. 
  While 
  the 
  principal 
  objects 
  

   they 
  intend 
  to 
  secure 
  are 
  birds 
  and 
  corals, 
  they 
  have 
  determined 
  to 
  do 
  

   considerable 
  coUectmg 
  in 
  the 
  hne 
  of 
  fungi, 
  paying 
  particular 
  attention 
  

   to 
  the 
  Sphmriodix 
  and 
  Gasteromycetes, 
  Mr. 
  Worcester 
  was 
  instructor 
  in 
  

   botany 
  for 
  some 
  time 
  at 
  the 
  University 
  of 
  Michigan, 
  and 
  while 
  there 
  

   specialized 
  upon 
  the 
  Myxomycetes, 
  so 
  results 
  may 
  be 
  looked 
  for 
  in 
  this 
  

   hne.^ 
  The 
  work 
  on 
  the 
  material 
  collected 
  will 
  be 
  prosecuted 
  at 
  Minne- 
  

   apohs 
  under 
  the 
  auspices 
  of 
  the 
  Minnesota 
  Academy 
  of 
  Sciences, 
  in 
  the 
  

  

  museums 
  of 
  which 
  all 
  the 
  collections 
  will 
  be 
  deposited 
  for 
  the 
  use 
  of 
  sci- 
  

   entific 
  men. 
  

  

  The 
  outer 
  layer 
  of 
  the 
  endosperm 
  of 
  the 
  seeds 
  of 
  grasses 
  has 
  

   long 
  been 
  considered 
  as 
  a 
  reservoir 
  of 
  nitrogenous 
  substances, 
  although 
  

   several 
  writers 
  have 
  suggested 
  that 
  it 
  was 
  either 
  a 
  conducting 
  tissue 
  

   tor 
  diastase 
  or 
  a 
  ferment-producing 
  layer. 
  Dr. 
  G. 
  Haberlandt 
  has 
  now 
  

   convinced 
  himself 
  by 
  experimental 
  researches 
  that 
  it 
  can 
  no 
  longer 
  be 
  ■ 
  

   considered 
  as 
  belonging 
  to 
  the 
  storage 
  system, 
  but 
  that 
  during 
  the 
  time 
  

   01 
  germination 
  it 
  produces 
  and 
  excretes 
  diastase, 
  belonging 
  therefore 
  

   to 
  the 
  glandular 
  system. 
  The 
  anatomical 
  structure 
  of 
  the 
  "aleurone 
  

   f 
  7?/* 
  , 
  during 
  germination 
  is 
  exactly 
  that 
  of 
  glandular 
  cells. 
  Moreover, 
  

   ni 
  ^}.^^ 
  ii^^xxQ 
  separated 
  from 
  the 
  grain 
  and 
  carefully 
  washed 
  will, 
  if 
  

   placed 
  m 
  contact 
  with 
  starch, 
  corrode 
  the 
  grains 
  and 
  finally 
  dissolve 
  

   th 
  fti^^f^^^^ 
  which 
  was 
  not 
  obtained 
  in 
  control 
  experiments. 
  In 
  order 
  

   tnat 
  this 
  formation 
  of 
  diastase 
  shall 
  begin 
  it 
  is 
  necessary 
  that 
  at 
  least 
  a 
  

   portion 
  of 
  the 
  embryo 
  capable 
  of 
  growth 
  should 
  be 
  present. 
  

  

  i^^. 
  ^\^^^ 
  detailed 
  account 
  that 
  has 
  yet 
  appeared 
  on 
  the 
  process 
  of 
  

  

  paramn 
  inibedding 
  in 
  plants 
  is 
  that 
  given 
  by 
  Ludwig 
  Koch 
  in 
  Prings- 
  

  

  eiv?^ 
  % 
  ^ 
  ^ 
  ^^^^^ 
  f- 
  wiss. 
  Botanik, 
  xxi, 
  367-468. 
  Exact 
  directions 
  are 
  

  

  anrl 
  1 
  u^^^^ 
  ^^'^P 
  ^^ 
  *^® 
  process, 
  so 
  that 
  any 
  one 
  who 
  can 
  read 
  them 
  

  

  uu 
  ao 
  as 
  he 
  is 
  told 
  can 
  not 
  fail 
  to 
  secure 
  good 
  results. 
  When, 
  however, 
  

  

  ^come 
  upon 
  a 
  detailed 
  description 
  of 
  a 
  microtome 
  (5 
  pp.) 
  we 
  must 
  own 
  

  

  wav^?>!^^- 
  ^^^^ 
  '^padding" 
  is 
  permitted 
  in 
  this 
  journal. 
  Here 
  is 
  the 
  

  

  niol 
  ]f 
  ^^^S®' 
  ^^^ 
  Korper 
  des 
  Mikrotoms 
  besteht 
  entweder 
  aus 
  ver- 
  

  

  tKeitem 
  Eisen 
  Oder 
  aus 
  Bronce, 
  - 
  . 
  . 
  An 
  dem 
  Korper 
  des 
  Instru- 
  

  

  rnn 
  f 
  o 
  ■ 
  ®^^^ 
  ^ 
  ^^^ 
  Schlittenbahnen 
  angebracht, 
  u. 
  s. 
  w." 
  ! 
  The 
  last 
  60 
  pages 
  

  

  has 
  

   th 
  

  

  Contain 
  "-^-»'v/jj.»_fM,iiiiv^iA 
  a;iAg^witn-/ixi, 
  m. 
  o. 
  >». 
  • 
  j-ii^ 
  *Mwv 
  v/w 
  ^«,ft 
  

  

  imbedH 
  P.^^^^P^t 
  of 
  the 
  various 
  organs 
  and 
  tissues 
  that 
  the 
  author 
  h 
  

   each 
  T 
  ^^.^^^^ 
  ^^J"' 
  specifying 
  the 
  success, 
  difficulties 
  or 
  failures 
  wi- 
  

   ly 
  usefi 
  1 
  ^^u" 
  ^^ 
  ^^^ 
  extraordinary 
  verbosity 
  the 
  paper 
  will 
  be 
  extreme- 
  

   the 
  snp 
  •" 
  ^^^ 
  ^^ 
  chloroform 
  instead 
  of 
  turpentine 
  in 
  permeating 
  

  

  nomin!?^^^?^ 
  ^^^^ 
  paraffin 
  is 
  recommended 
  and 
  we 
  have 
  found 
  it 
  eco- 
  

   nomical 
  of 
  time. 
  

  

  p^^ 
  

  

  