I have procured air [oxygen]...between five and six times as good as the best common air that I have ever met with.
Experiments and Observations on Different Kinds of Air (1775), Vol. 2
![I have procured air [oxygen]...between five and six times as good as the best common air that I have ever met with.](https://img.libquotes.com/pic-quotes/v1/joseph-priestley-quote-lbo4a9a.jpg)
![I have procured air [oxygen]...between five and six times as good as the best common air that I have ever met with.](https://img.libquotes.com/pic-quotes/v2/joseph-priestley-quote-lbo4a9a.jpg)
![I have procured air [oxygen]...between five and six times as good as the best common air that I have ever met with.](https://img.libquotes.com/pic-quotes/v3/joseph-priestley-quote-lbo4a9a.jpg)
![I have procured air [oxygen]...between five and six times as good as the best common air that I have ever met with.](https://img.libquotes.com/pic-quotes/v4/joseph-priestley-quote-lbo4a9a.jpg)
