(374) 
ing to or detra&ing from the motion, fliotild either leave 
behinde, or Gaft forward, the loofe waters incumbent on the 
Earth, ( and thereby caufe a Tide,or accumulation of Waters ;) 
and moft of all at the Full moon and New-mooo, where thole 
Accelerations or Retardations are greateft, 
Flow this Menfirual motion, if nothing elfe were fuperadded 
to the Annual , would give us two Tides in a moneth, and no 
more ; ( the one upon the Acceleration, the other on the Re- 
tardation ;) at New- moon and Full-moon j and two Ebbs, at 
the two Quarters 5 and in the Intervals, Riling and Falling 
water. 
But the Diurnal motion ftiperadded, doth the fame to this 
Menfirual , which GaliUo fuppofeth is to do to that Annuals 
that is, doth Add to, or Subfir&£l£roinj. the Nlenfiructl Accelera*’- 
lion or Retardation 3 and fo gives us Tide upon Tide. 
See For in whatfoever part of its Epicycle, we fuppofe 
J 8- 4 * T to be ; yet becaufe, while by its klenfirual motion the 
Center moves in the Circle FTN ; each point in its furface, 
by its diurnal motion moves in the Circle RMN': whatever 
effea ( accelerative or tardative )) the Menfirual would give, 
that effeeftby the Diurnal is increased in the parts LMN (01 
rather 1 M n. the Semicircle ) and moft of all at M : but dimi- 
cilhed in the parts NOT (or rather nOl) and moft of all 
at O. So that at M, and ( that is when the Afcon is in the 
Meridian below or above the Horizon , ) we are to have the Dl* 
urnal Tide or High-water, oceafioned by the greateft Accele^ 
ration or Retardation, which the Diurnal krch gives to that o| 
the Menfirual: which feemsto be the true caule of the Daily 
Tides. And withall gives an account, not onely why it fhould 
be every day ;but like wife, why at fuel? a time of the dayjand’why, 
this time fliould in a moneth run through the whole 34. hours s 
becaufe the~Moons coming to the Meridian zbove and be. 
low the Horizon, (or as the -Seamen call it, the Moons Southing. 
and Nsr thing, y.d oth fo : As like wife of the Spring tides and Neap- 
tides .F o r, wh en it fo happens, that the 'Menfirual and Diurnal Ac=* 
celerations or Retardations,be coincident, ( as ; at New moons 
and Full- moons they are,)- the effedfmuft needi be the greater. 
And: although ( which is not to be diftembled) this happen 
but 
