Trithemius is the reputed author of some obscure tracts on the great elixir, and as there was no other chemistry going Paracelsus would have to devote himself to the reiterated operations so characteristic of the notions of that time.
The archeus of Paracelsus appears again, but with still further complications - the whole body being controlled by the archeus influus, and the organ of the soul and its various parts by the archei insiti, which are subject to the central archeus.
The first noticeable quality in Paracelsus (c. 1490-1541) is his revolutionary independence of thought, which was supported by his immense personal arrogance.
German historians of medicine attach great importance to the revolt of Paracelsus against the prevailing systems, and trace in his writings anticipations of many scientific truths of later times.
Interwoven with it, however, were the results of his own personal experience and work in natural history and chemical pharmacy and practical medicine, unfettered by any speculative generalizations, and so shrewd an observer as Paracelsus was must have often felt that his philosophy and his experience did not agree with one another.
The only drawback is that rather than omit anything which Paracelsus may have composed, he has gone to the opposite extreme and included writings with which it is pretty certain Paracelsus had nothing to do.
Hydrogen appears to have been recognized by Paracelsus in the 16th century; the combustibility of the gas was noticed by Turquet de Mayenne in the 17th century, whilst in 1700 N.
In the earlier part of the 16th century Paracelsus gave a new direction to alchemy by declaring that its true object was not the making of gold but the preparation of medicines, and this union of chemistry with medicine was one characteristic of the iatrochemical school of which he was the precursor.
The actual therapeutical resources of Paracelsus included a large number of metallic preparations, in the introduction of some of which he did good service, and, among vegetable preparations, the tincture of opium, still known by the name he gave it, laudanum.
The growing jealousy and enmity culminated in a dispute with Canon Cornelius von Lichtenfels, who, having called in Paracelsus after other physicians had given up his case, refused to pay the fee he had promised in the event of cure; and, as the judges, to their discredit, sided with the canon, Paracelsus had no alternative but to tell them his opinion of the whole case and of their notions of justice.