to find them out, which is the cause that Anatomists and Chymists are so oft mistaken in natural causes and effects; for certainly, they sometimes believe great Errors for great Truths. Next, as for Drunkenness, I believe that many, who drink much Wine, are drunk before such time as the Wine spirit can get into the Arteries; but if there be Pores to the Brain, as it is most probable, the spirit of Wine may more easily ascend and enter those Pores, then the Pores of the Arteries, or the Mouth-veins, and so make a circular journey to the Head. But as for Excrements, whereof I spake in the beginning, as they are made several manners or ways, and in several parts of the body, so they are also discharged several ways from several parts, and several ways from each particular part, indeed so many several ways and manners, as would puzzle the wisest man in the world, nay your _Authors Interior keeper of the Brain_, to find them out. Wherefore, to conclude, he is the best Physician, that can tell how to discharge superfluity, and to retain useful nourishments; or to restore by the application of proper Medicines, decaying parts, or to put in order Irregular motions; and not those that have Irregular opinions of Immaterial causes: To which, I leave them, and rest, Madam, _Your faithful Friend_ _and humble Servant._ [1] _Ch._ Call'd _The Erring Watchman, or Wandring Keeper_. [2] _Ch._ call'd _The Spirit of Life_. XXXIII. _MADAM,_ I do not approve of your _Authors_ Doctrine, forbidding Phlebotomy or blood-letting in Fevers, opposite to the received Practice of the Schools; his reason is, that he believes there can be no corruption in the blood. _Corrupted blood_, says he,[1] _cannot be in the veins, neither doth a state of ill juice consist in the veins; for Gangrenes do teach, that nothing of Putrified matter can long persist without a further contagion of it self._ Also he says, _That the blood of the Veins is no otherwise distinguished by its several colours and signs, then as wine is troubled when the vine flourisheth._ To which I answer, first, That I can see no reason why there should not be as well corrupt blood, or an ill state of juice in the veins, as ill humors in the body. Perchance he will say, There is no corruption in the body. But Ulcers do teach the contrary. He may reply, Ulcers are not parts of the body. I answer, 'Tis true; but yet they are evil Inhabitants in the body, and the like may be in the Veins. But surely some men may have corrupted parts of their bodies, and yet live a great while; witness Ulcers in the Lungs, and other parts. But your _Author_ may say, When a part of the body is corrupted, it is no longer an animal Part. I grant it: but yet, as I said, that transformed part may remain in the body some time without destruction of the whole body; and so likewise, when some of the blood, is transchanged from being blood, so as not to be capable to be reduced again, it may nevertheless remain in the