An early formulation of Chisholm’s view can be found in [PPS]. Subsequent formulations were presented in the three editions of [TK] as well as in [FK]. [FK] is a collection of essays in epistemology. Some were newly written for [FK], but most were slightly revised versions of articles that Chisholm had already published. [FK] is thus a comprehensive presentation of Chisholm’s distinctive views in epistemology.