|←Author Index: Ha||Stephen Hales
|English botanist, physiologist, chemist, and inventor.|
- Hales, Stephen (1727), Vegetable Staticks.
About Hales 
- Darwin, Francis (1913), "Stephen Hales 1677—1761" in Oliver, Francis Wall (ed.) Makers of British botany.
- Hales, Stephen in the Dictionary of National Biography (1885–1900)
|Works by this author published before January 1, 1923 are in the public domain worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.|