Van Helmont had several other famous nostrums, with which he pretended to perform wonders, as quacks have done in all ages, and as some do now: for empiricism was never more in fashion than at the present day, and the chemical art has supplied them with many more arcana and nostrums than the ancients had in all their antidotes and theriacas, etc. since chemistry was made subservient to medicine. Van Helmont, nevertheless was a learned man, and acquired a great name and reputation, at least for some time; but, as neither his theory nor his practice were founded on nature and reason, nor conformable to them, the more judicious physicians soon saw their errors, as well as the fallacy of his new invented chemical terms and unmeaning phrases, which only contained the shadow and not the substance of the medical science; therefore both his chemical theory and hot regimen, together with his writings, sunk soon after his death, into a state of merited oblivion. Notwithstanding that the science of chemistry was greatly improved by these extraordinary men, who invented or discovered many useful remedies, which they introduced into the practice of medicine in a no less extraordinary manner, and thereby pointed out the way for others to follow them; yet we must allow that the more able and learned chemists have greatly enriched and improved the materia medica since, by making many curious experiments, and thereby discovering several new and very efficacious medicines, not only from the semi-metals, mercury and antimony, and the various chemical preparations from them, but from the more perfect metals, and some other mineral bodies, as well as from a great variety of remedies which are prepared both from vegetable and animal substances, as salts, oils, essences, spirits, tinctures, elixirs, extracts and many more needless here to be mentioned, but all of which are known to physicians. For all these we are indebted to the chemists who first invented and introduced them into practice; although the use and application, as well as the methods of administering them to the sick, to cure various other diseases than those they were first used for, has been greatly improved by several learned and ingenious physicians. FOOTNOTES: [142] See Demonologia, by J.S.F. p. 40. [143] See Magazine of Natural History, April, 1830. CHAPTER XXI. MODERN EMPIRICISM.