Davy became a close friend , and they worked together on the theory of acids , with Thomson willing to inhale Davy 's nitrous oxide in 1799 .
While in London Thomson met William Hyde Wollaston and Humphry Davy .
Humphry Davy became a close friend , and they worked together on the theory of acids , with London Thomson willing to inhale Humphry Davy 's nitrous oxide in 1799 .
While in London Thomson met William Hyde Wollaston and Humphry Davy .