The event now known as “the voyage of the Beagle” comprises Charles Darwin’s circumnavigation as ship’s naturalist on the second of three surveying voyages by H.M.S. Beagle<span>; the writings published as his first book, the </span>Journal of Researches<span>; and the genesis of his theory of evolution by natural selection. Writing between regimes of world-knowledge, Darwin mediates scientific observation through the language of aesthetics, and seeks to understand the convergence of disparate scales of geological and human history.</span>
This is the definition
archaic past and past participle of work.
The answer to the question you presented above would be 'persuasive speech' or 'oral persuasion'. These are the terms that refer to a speaker's use of persuasive language to persuade an audience.
