The Public Address and the Rhetoric of Science: Henry Rowland, Epideictic Speech, and Nineteenth-Century American Science

Abstract

The public address about scientific practice is an understudied genre in the scholarship on the rhetoric of science. Recent scholarship has studied expert-to-layperson addresses but not the relationship between addresses and other science writing. This article analyzes a scientific article and two speeches by Henry Rowland, the first chair of Physics at The Johns Hopkins University, and investigates how the public address supports and develops scientific ethos. Scientific ethos is developed through the genres of the scientific article and the public address, which delineates the mental activities that are presented through more commonly studied rhetorical activities in the scientific article.