{^tm'Mm^mmmn^mr.ms^-n^n-v^n^mm^ 1906) 



21. A New Disease of the Hop-vine caused by Peronoplasmopara Humuli 



n. sp. ('^Mm±^M) 



iiimimi^^nn. m-m^r.m'^m-i'jLM 1906) 



22. -H^^^li/i-^^^i-fc-C 



([plJifsIt^'l:-h't:Mz:W;fL+55:M 1907) 

 26. /hacDMtJ^fiW^ 



27. izA-p.i^Wit 6^-kmmmm^ 



