«EDITOR'S NOTEIn thepreparationof thisEnglishtranslation of ProfessorKolmogorov'sfundamentalwork,theoriginalGermanmonographGrundbegriffe derWahrscheinlichkeitrechnung which
appearedintheErgebnisseDer Mathematikin1933, andalsoaRussiantranslationbyG. M.Bavlipublishedin 1936 havebeenused.Itis apleasuretoacknowledgetheinvaluableassistanceoftwo friendsand former colleagues, Mrs. Ida Rhodes and Mr.D.V.Varley,andalsoofmyniece,GizellaGross.Thanksarealsodue
toMr.
RoyKueblerwhomadeavailableforcomparisonpurposeshisindependentEnglishtranslationoftheoriginalGermanmonograph.NathanMorrisonNJ
V)