00547nam a2200157   450000500170000000700040001700800040002104000090002505000170003410000170005124501660006826000670023430000430030165000300034470000150037420150624102351.0000000  aUOEL  aSB741.R8bH3  aHaddow, W.R.  aBlister Rust Reconnaissance in Ontario - 1953binterim Report Forest Pathology Laboratory Maple, Ontario, (Based  on Investigations carried out in 1928 and 1954)  aCanada.  :bDapartment of Agriculture Science Service,cc1954.  a68p. 3 leaves of plates :bIll. ; maps  aPatholgyxForestzOntario  aHill, A.W.