Researches, Chemical and Philosophical: Chiefly Concerning Nitrous Oxide by Humphry Davy

1800 ; 582 Pages

"In 1799 Humphry Davy, the young English chemist and inventor and future president of the Royal Society, began a very radical bout of self experimentation to determine the effects of inhaling nitrous oxide, more commonly know as "Laughing Gas". With his assistant Dr Kinglake, he would heat crystals of ammonium nitrate, collect the gas released in a green oiled-silk bag, pass it through water vapour to remove impurities and then inhale it through a mouthpiece. The effects were superb. Of these first experiments he described giddiness, flushed cheeks, intense pleasure, and "sublime emotion connected with highly vivid ideas".

- Public Domain Review