﻿3^ 
  BOTANIC 
  Aiv 
  GAZETTE. 
  [December, 
  

  

  rooms 
  for 
  students, 
  all 
  were 
  full 
  of 
  interest, 
  but 
  the 
  visitors 
  

   lingered 
  with 
  greatest 
  delight 
  in 
  that 
  portion 
  of 
  the 
  depart- 
  

   ment 
  devoted 
  to 
  the 
  study 
  of 
  bacteria. 
  It 
  was 
  a 
  pleasure 
  to 
  

   see 
  where 
  many 
  results 
  m 
  bacteriological 
  science 
  had 
  been 
  

   reached 
  and 
  have 
  the 
  methods 
  pointed 
  out 
  and 
  the 
  apparatus, 
  

   largely 
  rnade_ 
  at 
  the 
  doctor's 
  suggestion, 
  exhibited 
  bj 
  a 
  

   veteran 
  in 
  this 
  obscure 
  and 
  difficult 
  branch 
  of 
  practical 
  

   botanical 
  science. 
  

  

  Dr. 
  Thaxter, 
  of 
  the 
  Connecticut 
  station, 
  presented 
  a 
  pa- 
  

   per 
  accompanied 
  with 
  many 
  specimens 
  of 
  a 
  form 
  of 
  potato 
  

   ^fuf 
  J 
  T^^e 
  surface 
  of 
  the 
  badlv 
  affected 
  potatoes 
  becomes 
  

   tilled 
  with 
  holes, 
  and 
  in 
  these 
  and 
  upon 
  their 
  borders 
  is 
  a 
  

   grayish 
  filamentous 
  growth 
  due 
  to 
  a 
  fungus. 
  This 
  fungus 
  

   has 
  been 
  grown 
  upon 
  solid 
  cultures, 
  wdien 
  it 
  blackens 
  the 
  

   wT-?\^^^ 
  develops 
  a 
  lichenoid 
  growth 
  upon 
  its 
  surface. 
  

   While 
  behaving 
  in 
  some 
  respects 
  like 
  a 
  bacterium 
  its 
  structure 
  

   does 
  not 
  permit 
  its 
  classification 
  so 
  low 
  in 
  the 
  scale. 
  Among 
  

   ttie 
  most 
  interesting 
  specimens 
  shown 
  were 
  potatoes 
  that 
  had 
  

   peen 
  moculated 
  with 
  the 
  fungus 
  and 
  the 
  scab 
  had 
  developed 
  

   in 
  the 
  lines 
  touched 
  by 
  the 
  virus, 
  which 
  lines 
  produced 
  in 
  some 
  

   cases 
  the 
  monogram 
  of 
  the 
  name 
  of 
  the 
  discoverer. 
  Tiie 
  

   practical 
  point 
  of 
  most 
  interest 
  now 
  remaining 
  is 
  to 
  determine 
  

   me 
  relation 
  which 
  the 
  same 
  fungus 
  found 
  upon 
  manure 
  bears 
  

   to 
  the 
  scab 
  of 
  the 
  tubers. 
  It 
  is 
  likely 
  that 
  the 
  trouble 
  is 
  as- 
  

   soudted 
  vyith 
  manure 
  and 
  similar 
  decaying 
  substances 
  in 
  the 
  

  

  fhl 
  . 
  . 
  . 
  "" 
  '^'"'"^ 
  "^"^^ 
  betaken 
  in 
  fertilizing 
  the 
  soil 
  for 
  

   tne 
  potato 
  crop. 
  

  

  '; 
  Some 
  new 
  diseases" 
  was 
  the 
  subject 
  of 
  Professor 
  Pani; 
  

   me 
  s 
  paper, 
  and 
  it 
  consisted 
  largely 
  of 
  an 
  extended 
  list 
  o 
  

   TZTj 
  "^' 
  ^' 
  ^'^'""d 
  by 
  him 
  duriig 
  the 
  present 
  season 
  at 
  

   such 
  ' 
  r^- 
  ?^^^^^^ 
  species 
  were 
  Treated 
  at 
  some 
  length, 
  

   The 
  vn 
  • 
  '""^^ 
  ^^ 
  ^^^ 
  P^""^. 
  which 
  may 
  be 
  a 
  new 
  species- 
  

  

  dise-JpT"";! 
  Z"^^^ 
  '^^^^ 
  mentioned 
  with 
  the 
  most 
  injurious 
  

   uiseases 
  attendino- 
  ^^^u 
  a 
  r^..^. 
  r_..„j 
  „..nn 
  (rarden 
  

  

  attending 
  each. 
  A 
  

  

  bept« 
  ^r.A 
  ^ 
  ^^^^- 
  ^ 
  Uystopus 
  tound 
  upui 
  

  

  WK?i 
  .f^""^,''^^ 
  ^^h^'" 
  S'^^Jlar 
  '' 
  finds 
  " 
  were 
  repoK^^ 
  . 
  

  

  refirv 
  W- 
  rf 
  "'^^''^ 
  P-'^Pe^" 
  ^^as 
  being 
  discussed 
  Assistant 
  i^ei- 
  

  

  upon^thT 
  'f' 
  "^'^^ 
  U. 
  S. 
  Department 
  of 
  Agriculture, 
  caled 
  

  

  uS 
  1TI°" 
  ^"^^ 
  ^'^ve 
  an 
  interesting 
  account 
  of 
  thel^ 
  

  

  m 
  to 
  V? 
  ^'^"^ 
  ^^"^ 
  ^"der 
  his 
  charge. 
  Men 
  wei'e 
  be 
  ^ 
  

  

  ain 
  iTT''' 
  ^r'' 
  «^this 
  country 
  and 
  to 
  other 
  lands 
  to 
  b 
  

  

  agenct: 
  orT'^ 
  information 
  to 
  i,attle 
  against 
  destruct 
  

  

  nftivrfl^'^'iT;^^- 
  ^he 
  much 
  needed 
  knowledge 
  ^J, 
  

  

  but 
  with 
  .T 
  "ejieved 
  m 
  doing 
  thorough 
  sciennu^ 
  .■ 
  

  

  good 
  o 
  tL 
  r^" 
  '^'^ 
  ^° 
  the 
  practical 
  side,"so 
  that 
  imniedif. 
  

   good 
  to 
  the 
  farmers 
  might 
  result. 
  The 
  importance 
  of 
  hot^' 
  

  

  