8Thayer,The Burden of proof,4Harv.L.Rev.45,1890;Thayer,A Preliminary Treatise of Evidence,P.355-364,1898.
9Wigmore,Evidence.vol.9,2480-§2485,Chadbourn rev.1981;Morgan,Basic Problems of Evidence,1954;McCormick,Handbook of the Law of the Evidence PP.336-430,2d ed.1972;Maguire,Evidence,Common Sense and Common Law p.175.1947;Cleary,presuming and pleading,An Essay on Juristic Immaturity,12 Stan.L.Rev.p.5,15.1959;James,Burden of proof,47Va,L.Rev.51.1961.
