m particular influence which it hath oil moyft Bodies, or by forne 
Magnetie\vertue> & rawing the water towards it, (which fhoultl 
therefore make the Water there high^fi, where the Moon is ■ver- 
tical') or by its gravity and prelfure down wards upon the Ter- 
raqueous Globe (which ihould make it lorveff where the Moon 
is vertical') or by whatever other means ( according to the ft- 
veral Conjectures of inquifitivc perfons-, ) hath fo great an in- 
fluence on , or at leaft a connexion with, the 'Sea’s Flux and 
Reflux, that it would feem very unreafonablc , to feclude the 
confideration of the Moons motion from that of the Sea ; The 
periods ofTides(to fay nothing of the greatnefs of them near the 
New-moon and Full-moon) fo conftantly waiting on the 
Moon's motion, that it may be well prefumed , that either the 
one is governed by the other, or at leait both from fome com- 
mon 
But the firfl: that I knpw of, who took in the confideration of 
the Earth's motion, (: Diurnal and Annual ') was Gdilceo ° who in 
his Syfteme of the World , hath a particular difcourfe on this fub- 
jecfl: : Which, from the firfl: time that lever read it, feemed to 
me fo very rational , that I could never be of other opinion, 
but that the true Account of this great Phenomenon was to be 
referred to the Earths motion, as th c Principal caufe of it : Y et 
that of the Moon (for the reafons above mentioned) not to be 
excluded, as to the determining the Periods of Tides , and other 
circumftaoces concerning them. And though it be manifefl; 
enough, that Gahlceo , as to fome particulars, was miftaken in the 
account which there he gives of it • yet that may be very well 
allowed, without any blemifh to fo deferving a perfon, or pre- 
judice to the main Hypothecs : For that Difcourfe is to be loo- 
ked upon- cYneiy as an Ef ay of the general Hypothecs $ which 
as to particulars was to be afterwards adjufted , from a good 
General Hi f ary of Tides ; which it’s manifefl: enough that he had 
not ; and wlrch is in a great meafure yet wanting. For were 
the matter of Fad: welTagreed on , it is not likely, that feveral 
Hypothefes fhould fo far differ, as that one fhould make the 
Water thei£ and there at the Higbeft, where and when the other 
makes it at the Lowell ; as when the Moon is Vertical to the 
place. 
N n a 
A d 
