Sir Humphrey Davy was the author of Elements of Agricultural Chemistry that explored the use of electricity in agriculture. He was a natural philosopher, inventor, and minor poet. He was an English chemist who discovered elements such as potassium and sodium. He wrote the first text on chemistry in agriculture that was published and sold in 1813. The book was popular among farmers who learned to mass-produce in a new way.

Eliot, George. Middlemarch, edited by Gregory Maertz. 1874, Broadview Literary Texts.