﻿212 
  BOTAXICAL 
  GAZETTE. 
  [ 
  AugUSt, 
  

  

  methods. 
  No. 
  1, 
  in 
  which 
  the 
  mercurj' 
  was 
  in 
  the 
  proportion 
  of 
  1 
  : 
  10000, 
  

   showed 
  at 
  the 
  end 
  of 
  ten 
  days 
  five 
  colonies 
  of 
  the 
  fungus. 
  Nos. 
  2 
  and 
  3, 
  

   in 
  which 
  the 
  mercury 
  was 
  in 
  the 
  proportion 
  of 
  1:6000 
  and 
  1:4500, 
  

   respectively, 
  failed 
  to 
  give 
  any 
  growth. 
  Gelatine 
  affords 
  a 
  good 
  medium 
  

   for 
  the 
  growth 
  of 
  this 
  fungus, 
  and 
  one 
  also 
  can 
  distribute 
  the 
  fungicide 
  

   much 
  more 
  thoroughly 
  than 
  can 
  be 
  done 
  in 
  a 
  permanently 
  solid 
  mix- 
  

   ture. 
  When 
  grown 
  on 
  solid 
  media 
  a 
  much 
  larger 
  proportion 
  of 
  the 
  

   poison 
  is 
  necessary, 
  as 
  it 
  is 
  impossible 
  to 
  distribute 
  it 
  as 
  thoroughly 
  as 
  in 
  

   fluid 
  cultures. 
  A 
  quantity 
  of 
  starch 
  paste 
  was 
  made, 
  to 
  which 
  was 
  added 
  

   corrosive 
  sublimate, 
  in 
  exact 
  proportion 
  of 
  1 
  : 
  1000. 
  This 
  was 
  done 
  be- 
  

   fore 
  boiling 
  the 
  starch 
  solution, 
  in 
  order 
  to 
  distribute 
  as 
  thoroughly 
  as 
  

   possible 
  the 
  mercury. 
  Of 
  three 
  cultures 
  made 
  from 
  this 
  starch 
  paste, 
  

   two 
  at 
  the 
  end 
  of 
  six 
  days 
  showed 
  considerable 
  growth 
  of 
  the 
  fungus, 
  

   about 
  the 
  inoculation 
  point. 
  This 
  seems 
  to 
  indicate 
  that 
  it 
  is 
  on 
  account 
  

   of 
  the 
  density 
  of 
  the 
  medium, 
  and 
  consequent 
  insufficient 
  distribution 
  

   of 
  the 
  poison, 
  that 
  the 
  fungus 
  is 
  able 
  to 
  grow. 
  When 
  grown 
  in 
  proper 
  

   media, 
  in 
  which 
  the 
  poison 
  can 
  be 
  thoroughly 
  and 
  equally 
  distributed, 
  

   Penicilhum 
  is 
  unable 
  to 
  stand 
  the 
  presence 
  of 
  germicides 
  to 
  a 
  greater 
  

   extent 
  than 
  many 
  other 
  forms.— 
  H, 
  L. 
  Russell, 
  Botanical 
  Labomt'^!' 
  

   University 
  of 
  Wisconsin. 
  

  

  CURRENT 
  LITERATURE. 
  

  

  Hackel's 
  Gramiiieae. 
  

  

  _ 
  American 
  literature 
  has 
  received 
  an 
  invaluable 
  increase 
  in 
  the 
  truns- 
  

  

  ation 
  of 
  a 
  work 
  so 
  important 
  as 
  that 
  of 
  Prof. 
  Hackel,' 
  not 
  only 
  in 
  regard 
  

  

  to 
  Us 
  scientific 
  merits, 
  but 
  also 
  as 
  being 
  of 
  practical 
  use 
  to 
  the 
  farmers 
  

  

  and 
  students 
  in 
  the 
  United 
  States. 
  Among 
  all 
  the 
  works 
  hitherto 
  pub- 
  

  

  |, 
  ., 
  "«*.v.« 
  ^^».tA,ti^a, 
  ^-XUiUlig 
  »li 
  Lilt! 
  WUI 
  iiO 
  iJAi'"*-'* 
  """ 
  ^ 
  

  

  hshed 
  upon 
  this 
  subject, 
  Prof. 
  Hackel's 
  book 
  ranks 
  as 
  undoubtedly 
  the 
  

   most 
  comprehensive, 
  and 
  the 
  translators 
  have 
  rendered 
  a 
  great 
  help 
  to 
  

   the 
  st^udy 
  of 
  this 
  family, 
  the 
  grasses, 
  in 
  our 
  country. 
  

  

  We 
  are 
  therefore 
  greatly 
  indebted 
  to 
  the 
  translators 
  for 
  having 
  made 
  

   such 
  a 
  work 
  more 
  accessible 
  to 
  American 
  students 
  and 
  farmers, 
  and 
  the 
  

   translation 
  has 
  been 
  done 
  in 
  a 
  manner 
  that 
  makes 
  it 
  not 
  only 
  pleasr* 
  

  

  reacung 
  hut 
  also 
  interesting 
  to 
  scientific 
  students 
  and 
  easily 
  understo 
  

   m 
  practical 
  use. 
  

  

  radical 
  use, 
  

  

  fir«f 
  ^n^\ 
  ^■'''^' 
  *' 
  '^ 
  P'^''°^' 
  i^«^"' 
  ^8 
  ^^' 
  vi^ied 
  into 
  two 
  parts, 
  of 
  which 
  the 
  

   iJLTT^' 
  l'"'"''^ 
  '"^^'^^ 
  ^Po° 
  the 
  structuVe, 
  morphology 
  and 
  ph)'*" 
  

   lologj, 
  while 
  the 
  second 
  part 
  includes 
  keys 
  of 
  analysis 
  and 
  description* 
  

  

  mo^Lrn'' 
  r 
  ^'"'''- 
  ^^^ 
  ^^^' 
  f°^ 
  i^^tance, 
  in 
  the 
  first 
  part 
  all 
  the 
  

   !^r!!;:j:!!:!i;;^^^§^^ 
  understanding 
  of 
  the 
  structure^^ 
  

  

  HoltACo.JewYMk 
  1890 
  **^ 
  ^' 
  ^'^°'^0'^ 
  Scribner 
  and 
  Effle 
  A. 
  Southu-ortb. 
  (H'^"^'^ 
  

  

  