Essay on a Manner of Determining the Relative Masses of the Elementary Molecules
- Avogadro's 1811 Journal de Physique paper.
- http://webserver.lemoyne.edu/faculty/giunta/avogadro.html

Amedeo Avogadro
- Brief description of work and its importance, links to other resources.
- http://chemistry.about.com/library/weekly/aa111602a.htm