NOW from what has been said, I hope it appears highly reasonable to compute the _legitimate Time_ of BIRTH, not only by _Months_ and _Moons_, but also by _Weeks_ and _Days_: Which however yet, I look not upon to be any very full, exact, or sufficient satisfactory _Calculation_; because (I think) we have also just Reason to compute this _Time_ even by _Hours_ and _Minutes_. Therefore how just soever _Aristotle_’s Observation (mentioned by _Pliny_[142]) may be, _that no Animal expires but in the Reflux or Ebb of the Sea_; I am yet positive, that Monsieur _Paschal_’s Notion (mentioned by Doctor _Mead_[143]) _that all Births as well as Deaths fall out in the Reflux, and that no Animal is born or dies in the Flux_, may be rationally controverted: For I must needs assert that, without any regard to his _Senarian Fluxes_ and _Refluxes_, BIRTHS happen at every _Hour_ of the DAY or NIGHT: and perhaps more naturally too in the FLUX, than in the REFLUX of the _Sea_. And this, I think, may appear evident, even from the self-same Reasons by which he endeavours to make out the Contrary[144]; namely, that intermitting _Fevers_ have their greatest _Paroxisms_ in the Time of the FLUX, whereas they cease in the REFLUX by _sweating_: collecting from hence, that the Motion, Vigour, and Force of _Distempers_ are chiefly advanc’d in the _Senary_ of the FLUX; and on the contrary, that they are dissolved in the _Senary_ of the REFLUX. Which Observation, with respect to _Fevers_, this most excellent _Doctor_ has found experimentally[145] _True_, as a great many others have also done. BUT in the _Case_ of a Woman in LABOUR, as (with Submission) I judge the _Paroxisms_ to differ from the Nature of those in a _Fever_, so I humbly conceive that the _Effect_ must prove the REVERSE. For the _Paroxisms_ in BIRTH, are nothing else than the _Pains_ or _Pangs_ of LABOUR; and who knows not that (in Case of a _natural Situation_ of the _INFANT_ and the _WOMB_) the greater _These_ are, the more _Success_ and _Expedition_ attends the BIRTH? And who again knows not, that in this Case, the more vigorous _Motion_ the _INFANT_ makes, and the more _Force_ and _Strength_ that attends the _Pains_, the sooner the DELIVERY is perfected? Which, of consequence, according to his own Opinion, will fall out in the _Senary_ of the FLUX? In fine, again I farther observe, that, as the REFLUX may be the appointed Time of Nature destinated to _Death_, so may the FLUX be allotted to BIRTH; which (in my Mind) is as opposite to _Death_, as the FLUX is to the REFLUX of the _Tide_ of the Sea.