After repeating the experiment several times and using different amounts of mercury he found that under controlled conditions, the pressure of a gas is inversely proportional to the volume occupied by it.
Korranud katset mitu korda, kasutades erinevat elavhõbeda hulka, leidis ta kontrollitud tingimustes, et gaasi rõhk on pöördvõrdeline selle ruumalaga..