(c. 1582 - c. 1645)
French physician and chemist who, a century before Lavoisier, discovered that calcinated lead or tin residue increased in weight over the original metal, which he attributed to the incorporation of air into the calcined matter. This hypothesis was confirmed by Lavoisier in 1789.
Science Quotes by Jean Rey (2 quotes)
I know not what fatal calamity has invaded the sciences, for when an error is born with them and with the lapse of time becomes as it were fixed, those who profess the science will not suffer its withdrawal.
— Jean Rey
Essays of Jean Rey, Doctor of Medicine, on an Enquiry into the Cause Wherefore Tin and Lead Increase in Weight on Calcination (1630). Translated in Alembic Club Reprint No. 11, (1895) 25.
The condensed air becomes attached to [the metallic calx], and adheres little by little to the smallest of its particles: thus its weight increases from the beginning to the end: but when all is saturated, it can take up no more.
— Jean Rey
The Increase in Weight of Tin and Lead on Calcination (1630), Alembic Club Reprint (1895), 52.