The result of the whole Affair, in short is this, A _Crisis_ is no more than the Expulsion of the Morbific Matter out of the Body, thro' some or other of the Secretory Organs; in order to which, it is necessary that this should be prepar'd and comminuted to such a degree, as is required to make it pass into the Orifices of the respective Glands; and therefore _as_ the most _perfect Crisis_ is by _Sweat_, (both by reason that the Subcutaneous Glands do naturally discharge more than all the other put together, and also that their Ducts being the smallest of any, whatsoever comes this way is certainly wery well divided and broken) _so_ the most _imperfect_ is an _Hæmorrhage_, because This is an Argument that what Offends is not fit to be cast off in any Part, and consequently breaks the Vessels by the Effervescence of the Blood. An _Abscess_ in those Organs which separate thick, slimy Juices is of a middle nature betwixt these two. Now it is very plain, That if the time, in which either the Peccant Humour is prepar'd for Secretion, or the Fermentation of the Blood is come to its height, falls in with those Changes in the Atmosphere which diminish its pressure; the _Crisis_ will then be more compleat and large. And also, that this Work may be forwarded or delay'd a day, upon the account of such an Alteration in the Air; the Distention of the Vessels upon which it depends, being hereby made more easie, and a weak Habit of Body in some Cases standing in need of this outward Assistance. Thus a Fever which requires about a Week to its Period, may sometimes, as _Hippocrates_ observed, have a good Crisis on the sixth, and sometimes not till the eighth day. In Order therefore to make true Observations of this kind, the time of Invasion is to be considered, The genuine course of the Distemper must first be watched, which is not to be interrupted by any violent Methods: The strength of Nature in the Patient is to be considered, and by what Secretions the Crisis is most likely to be performed; and it will then be found, that not only the _New_ and _Full_ Moons, but even the _Southings_, whether visible or latent, of the Planet, are here of considerable Moment.