SECTION I.--_Of Women's Monthly Courses in General._ That divine Providence, which, with a wisdom peculiar to itself, has appointed woman to conceive by coition with man, and to bear and bring forth children, has provided for nourishment of children during their recess in the womb of their mother, by that redundancy of the blood which is natural to all women; and which, flowing out at certain periods of time (when they are not pregnant) are from thence called _terms_ and _menses_, from their monthly flux of excrementitious and unprofitable blood. Now, that the matter flowing forth is excrementitious, is to be understood only with respect to the redundancy and overplus thereof, being an excrement only with respect to its quantity; for as to its quality, it is as pure and incorrupt as any blood in the veins; and this appears from the final cause of it, which is the propagation and conservation of mankind, and also from the generation of it, being superfluity of the last aliment of the fleshy parts. If any ask, if the menses be not of hurtful quality, how can they cause such venomous effects; if they fall upon trees and herbs, they make the one barren and mortify the other: I answer, this malignity is contracted in the womb, for the woman, wanting native heat to digest the superfluity, sends it to the matrix, where seating itself till the mouth of the womb be dilated, it becomes corrupt and mortified; which may easily be, considering the heat and moistness of the place; and so this blood being out of its proper vessels, offends in quality. SECT. II.--_Of the Terms coming out of order, either before or after the usual Time._ Having, in the former part of this work, treated, of the suppression and overflowing of the monthly terms, I shall content myself with referring the reader thereto, and proceed to speak of their coming out of order, either before or after the usual time. Both these proceed from an ill constitution of body. Everything is beautiful in its order, in nature as well as in morality; and if the order of nature be broken, it shows the body to be out of order. Of each of these effects briefly.