Most of our Writers are of his Sentiment, and give it only a common Place with the others usually prescrib’d in the Heart-burning, or windy sour Humour offending the upper Orifice of the Stomach: But the Shell of the Fish that breeds them, pretends to, and is allow’d by all our best Authors to have the same Virtues. Nature has been very liberal in this Sort of Alkali; all the Shell-fish, all the Claws of Crabs, or the Tips, if you please to value them most, the two Stones of the Craw-fish, and the Shells of Eggs are directed frequently with the Pearl: The two Corals, &c. and the numerous Earths of the absorbing Kind, the Chalk, the Marles, are judged by many preferable to it, or are used with the same Success: So that we have the greatest Reason to believe, that the debauched Practice of the English Preservers of Health have made use of it, with Design to extract Sums out of the Purse, rather than of making the Crasis of the Blood better, or the Spirits more vivacious; and if you have Oyster-Shells or Crabs-Eyes in its Stead, which are generally made use of under that Name, they will have the same, if not a better Effect.

Gold is by our Chymical Writers stil’d the Sun, and the King of Metals. The Kings and Princes of the last Age were amus’d and defrauded, their Lives made less durable than their Subjects, who were beneath the Use of Gold; the Chicken they eat had the Happiness to be fed with it, that they might extract the Sulphur and prepare it by their Circulation, and volatize it for their Use. But the Physicians were contented to collect all the Gold which past unaltered and undiminished thro’ the Poultry, into their Pockets. This, with many other Artifices of this Stamp, are by many laid aside, because the Publick begin to be sensible that the Gold, as the Bezoar and the Pearl, were of more Cordial Virtue to the Adviser and Confederates than to the Subject of their Care and Attendance.

The Aurum potabile is sometime the Entertainment of Conversation, when the poor Alcymists or their vain Pretensions are considered; there being no Humour in any Animal which can alter or dissolve it, no Effect or Operation can be expected from it, it deludes the Eye and Fancy in the Cordial Waters, and on the Bolus and Electuaries, but must pass away sooner or later as it adheres more or less to the Stomach or Bowels, without acting or being acted on in any Part of the Body; the Pills, either purgative or cordial, are as often dismist entire, having been covered with Leaf-Gold, which is able, though thin, to dismiss the most subtil and penetrating Parts of all Humours. The Value of the Leaf is not worth your Enquiry, the Book being sold at a low Price. The Fulminating Powder is a rough violent Medicine, and has been lately neglected, and given Place to others more useful and less dangerous.

Silver and Lunar Pills are as vile and disregardless as Gold, when they are considered with relation to the Cure of Diseases.

The precious Stones have constantly been put into the old Receipts by that Sort of Writers who prescribe every Medicine very faithfully, and design to please and amuse the Readers with the Bulk and Length of the Prescription; but they have been neglected by the practical Authors, who had the Trouble of considering, that no Manner of Vertue could be expected from so hard and therefore impenetrable Bodies; as the Diamond, Ruby, Hyacinth, the Sapphire, the Smargad and Topaz, &c. who are not capable of a Dissolution, and of altering or acting upon the Fluids, and as it is most certain that many very cheap Medicines have greater and more observable Effects, it’s ridiculous to give a hard gritty Powder, which may for many Reasons corrode and offend the Stomach and Bowels in their Passage.

Among the many Foreign Vegetables imported here, I must take Notice of Sarsaparilla, as it has had the Preference before many others, especially of our own Growth, in many difficult and chronical Cases, will have obtain’d its Credit and Reputation by being in good Company, and by being prescrib’d with the cheapest Drugs, but of the greatest Virtues, viz. Guiacum, Sasaphras, China, and the Seeds of many most useful Plants. If it has been by it self beneficial, in the Practice of the West-Indies, it has lost its Qualities in the Passage into the colder Climates, being a soft and thin Root, it may evaporate and exhale its most active Parts; many of the late Writers have given this Judgment of it, that it is nullius Saporis vel Odoris, of no Smell or Taste.

The Physicians have not yet done, but contrive to thrust into the Stomachs of their Patients, not only the most loathsome, but the Parts of Animals, which after their Death, are void of all Spirits or Oils, and are a dry and unactive Earth.

Of the first Sort, Mummy claims the Precedence; this has had the Honour to be worn in the Bosom next to the Heart, by the Kings and Princes, and all those who could then bear the Price the last Age in all the Courts of Europe; ’twas presented with the greatest Assurance, that it was able to preserve from the most deadly Infections, and that the Heart was secured by it from all the Kinds of Malignity: They expected long Life from the decay’d, or dead, Spices, and Balsams, and Gums, and the Piece of the dead Body of an Egyptian Prince, or of a Slave preferred by him: If taken inwardly, it was avow’d to be able to dissolve the Blood coagulated, to give new Life and Motion to all the Spirits. The dry’d Hearts of many Animals, the Livers, the Spleens burnt to a Powder; the Skins of the Stomachs, or Guts of Cocks, and Worms, and the dry’d Lungs of Foxes, ought to be rejected as loathsome and offensive without any Qualities to amend, by the Expectation of any Advantage.

The Powder of Vipers by it self, and in the Troches, will deserve a more strict Examination, because it is not only depended on in many Chronical Diseases, but the Life of the Patient in the Acute and Pestilential is betray’d and lost, if it has no alexiterial Powers to expel the Malignity, or support the natural Vigour. But as the Flesh of all Animals, and Fish, when dry’d, have exhal’d the Volatile Spirits with the Moisture, and nothing remains but the Skins and Fibres, and are capable of giving very little Nourishment to the Blood, and are very difficult to be dissolv’d, or digested in the Stomach: You may conclude, by trying when in Health, if Vipers will support your Strength, or if eating of the Flesh in all the Kinds of Cookery, will please the Palate more than the common Food, what you may hope from the dry Powder, or the Cake of it with Salt and Meal, (and the Troches of Vipers are no more) when your Fever calls for the best Alexipharmick. You may to this compare the Skulls of dead Men, now presum’d to command the Epilepsies, and other violent Diseases, if the Skull has been long in Powder, or has long surviv’d the Criminal, the Spirits distill’d from it, are not stronger than those from the Horn of a Stag, or the Spirits of Urin by it self, or from Sal Armoniack: the Shell of the Head preserves the Brains, and the Powder shall not fail to preserve the Spirits of all the Brains which can be perswaded to use it.

What can you think will be the Success, from the Use of the Nest of the Swallow, or the Cast off Skin of a Serpent; your Thoughts will naturally reflect on the perfidious Fourbery of making great Gain from the Bubbles put on the Sick, or the vile Negligence of the rest who have suffer’d the fatal Amusements to be at last confirm’d by Custom.