Editorial note — SUPPOSED PAPAL PROHIBITION OF CHEMISTRY.

[Footnote 14: The meaning of this term we discussed in the previous chapter on Anatomy in relation to the bull of Boniface and Liber VI. The motto of the publisher of the volume in which it occurs deserves quotation because of its apt application in the present circumstance. It is in Latin: "Quod tibi fieri non vis, alteri ne feceris"--"What you would not have done to yourself, don't do to another." If writers about the Popes were as careful to substantiate accusations against them as fully as they would like any accusations against themselves to be corroborated before being accepted and circulated, we should hear much less of Papal intolerance and of Church opposition to science. Even a dead Pope must be considered as a man whose reputation one should not malign without good reason and substantial proof. I must add that, as with regard to the other Papal documents mentioned, I owe the copy of this decree to Father Corbett, of St. Charles Borromeo Seminary, Overbrook, Pennsylvania, and am indebted to him besides for many helpful suggestions.]