We have also fair and large baths, of several mixtures, for the cure of diseases, and the restoring of man’s body from arefaction; and others for the confirming of it in strength of sinews, vital parts,
and the very juice and substance of the body.
We have also certain chambers, which we call chambers of health, where we qualify the air as we think good and proper for the cure of diverse diseases and preservation of health.
We have burials in several earths, where we put diverse cements, as the Chinese do their porcelain. But we have them in greater variety, and some of them more fine. We have also great variety of composts, and soils, for the making of the earth fruitful.
By faith Abraham, when called to go to a place he would later receive as his inheritance, obeyed and went, even
though he did not know where he was going.
The preparations and instruments are these. We have large and deep caves of several depths. The deepest are sunk 600 fathoms; and some of them are digged and made under great hills and mountains; so that if you reckon together the depth of the hill, and the depth of the cave, they are (some of them) above three miles deep. For we find, that the depth of a hill, and the depth of a cave from the fault, is the same thing; both remote alike, from the sun and heaven’s beams, and from the open air. These caves we call the lower region; and we use them for all coagulations, indurations, refrigerations, and conservations of bodies. We use them likewise for the imitation of natural mines; and the producing also of new artificial metals, by compositions and materials which we use, and lay there for many years. We use them also sometimes, (which may seem strange,) for curing of some diseases, and for prolongation of life, in some hermits that choose to live there, well accommodated of all things necessary, and indeed live very long; by whom also we learn many things.
We have also houses of deceits of the senses; where we represent all manner of feats of juggling, false apparitions, impostures, and illusions; and their fallacies. And surely you will easily believe, that we, that have so many things truly natural, which induce admiration, could in a world of particulars decieve the senses, if we woule disguise those things, and labor to make them seem more miraculous. But we do hate all impostures, and lies; insomuch as we have severely forbidden it to all our fellows, under pain of ignominy and fines, that they do not show any natural work or thing, adorned or swelling; but only pure as it is, and without all affectation of strangeness.
We have also engine houses, where are prepared engines and instruments for all sorts of motions. There we imitate and practice to make swifter motions, than any you have, either out of your muskets, or any engine that you have; and to make them, and multiply them more easily, and with small force, by wheels, and other means; and to make them stronger, and more violent, than yours are; exceeding your greatest cannons, and basilisks.
We find also diverse means yet unknown to you, of producing light, originally, from various bodies. We procure means of seeing objects afar off; as in the heaven, and remote places: and represent things near as afar off; and things afar off as near; making feigned distances. We have also helps for the sight, far above spectacles and glasses in use. We have also glasses and means, to see small and minute bodies, perfectly and distinctly; as the shapes and colors of small flies and worms, grains and flaws in gems which cannot otherwise be seen, observations in urine and blood not otherwise to be seen. We make artificial rainbows, halos, and circles about light. We represent also all manner of reflections, refractions, and multiplications of visual beams of objects.
We have also furnaces of great diversity, and that keep great diversity of heats: Fierce and quick; strong and constant; soft and mild; blown, quiet, dry, moist; and the like. But above all we have heats, in imitation of the suns and heavenly bodies’ heats that pass diverse inequalities, and (as it were) orbs, progresses, and returns whereby we produced admirable effects. Besides we have heats of dungs; and of bellies and maws of living creatures, and of their bloods, and bodies; and of hays and herbs laid up moist; of lime unquenched; and such like. Instruments also which generate heat only by motion. And further, places for strong insulations; and again places under the earth, which by nature, or art, yield heat. These diverse heats we use, as the nature of the operation, which we intend, requires.
We have drinks also brewed with several herbs, and roots, and spices; yea with several fleshes, and white meats; whereof some of the drinks are such, as they are in effect meat and drink both; so that many, especially in age, do desire to live with them, with little or no meat, or bread. And above all we strive to have drinks of extreme thin parts, to insinuate into the body, and yet without all biting, sharpness, or fretting; insomuch as some of them, put upon the back of your hand, will, with a little stay, pass through to the palm, and yet taste mild to the mouth. We have also waters, which we ripen in that fashion, as they become nourishing; so that they are indeed excellent drink; and many will use no other.