An examination of the so-called Bull with regard to chemistry, it is really only a decree, shows even less reason for the slander of Pope John XXII. than of Boniface VIII. John had been scarcely a year on the papal throne when he issued this decree forbidding "alchemies" and inflicting a punishment upon those who practised them. The first sentence of the title of the document is: "Alchemies are here prohibited and those who practise them or procure their being done are punished." This is evidently all of the decree that those who quoted it as a prohibition of chemistry seem ever to have read. Under the name "alchemies," Pope John, as is clear from the rest of the document, meant a particular kind of much-advertised chemical manipulations. He forbade the supposed manufacture of gold and silver. The first sentence of his decree shows how thoroughly he recognized the falsity of the pretensions of the alchemists in this matter. "Poor themselves," he says, "the alchemists promise riches which are not forthcoming." He then forbids them further to impose upon the poor people {94} whose confidence they abuse and whose good money they take to return them only base-metal or none at all. The only punishment inflicted for the doing of these "alchemies" on those who might transgress the decree was not death or imprisonment, but that the pretended makers of gold and silver should be required to turn into the public treasury as much gold and silver as had been paid them for their alchemies, the money thus paid in to go to the poor. As in the case of the Bull with regard to anatomy, it is very clear that by no possible misunderstanding at the time was the development of the science of chemistry hindered by this papal document. Chemistry had to a certain extent been cultivated at the University of Paris, mainly by ecclesiastics. Both Aquinas and his master Albertus wrote treatises on chemical subjects. Roger Bacon devoted much time to it as is well known, and for the next three centuries the history of chemistry has a number of names of men who were not only unhampered by the ecclesiastical authorities, but who were themselves usually either ecclesiastics, or high in favor with the churchmen of their time and place. This is true of Hollandus, of Arnold of Villanova, of Basil Valentine, and finally of the many abbots and bishops to whom Paracelsus in his time acknowledged his obligations for aid in his chemical studies.