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.