He listed two experiments on living creatures: "Experiment 40", which tested the ability of insects to fly under reduced air pressure, and the dramatic "Experiment 41," which demonstrated the reliance of living creatures on air for their survival.
Ia mencatat dua percobaan terhadap makhluk hidup: "Eksperimen 40," yang menguji kemampuan serangga terbang di tekanan udara yang dikurangi, dan yang dramatis "Eksperimen 41," yang menunjukkan ketergantungan makhluk hidup akan udara pada kehidupan mereka.