1ſtituted in other points of the Quadrant A I, drawing the
gents in the ſaid points, and the perpndiculars upon the ſame
ling from the terms of the diameters of the Equinoctial drawn
from the errect planes by the ſaid Tangents to the plane of the
grand Orb; the parts of the ſaid Tangents (which ſhall
nually be leſſer towards the Equinoctials, and greater towards the
Solſtices) ſhall give us the quantities of the additions and
ctions. How much in the next place the leaſt additions differ from
the greateſt, is eaſie to be known, becauſe there is the ſame
ference betwixt them, as between the whole Axis or Diameter of
the Sphere, and the part thereof that lyeth between the
Circles; the which is leſs than the whole diameter by very near a
twelfth part, ſuppoſing yet that we ſpeak of the additions and
ſubſtractions made in the Equinoctial; but in the other
lels they are leſſer, according as their diameters do diminiſh.
gents in the ſaid points, and the perpndiculars upon the ſame
ling from the terms of the diameters of the Equinoctial drawn
from the errect planes by the ſaid Tangents to the plane of the
grand Orb; the parts of the ſaid Tangents (which ſhall
nually be leſſer towards the Equinoctials, and greater towards the
Solſtices) ſhall give us the quantities of the additions and
ctions. How much in the next place the leaſt additions differ from
the greateſt, is eaſie to be known, becauſe there is the ſame
ference betwixt them, as between the whole Axis or Diameter of
the Sphere, and the part thereof that lyeth between the
Circles; the which is leſs than the whole diameter by very near a
twelfth part, ſuppoſing yet that we ſpeak of the additions and
ſubſtractions made in the Equinoctial; but in the other
lels they are leſſer, according as their diameters do diminiſh.
This is all that I have to ſay upon this Argument, and all perhaps
that can fall under the comprehenſion of our knowledge, which,
as you well know, may not entertain any concluſions, ſave onely
thoſe that are firm and conſtant, ſuch as are the three kinds of
riods of the ebbings and flowings; for that they depend on cauſes
that are invariable, ſimple, and eternal. But becauſe that
condary and particular cauſes, able to make many alterations,
termix with theſe that are the primary and univerſal; and theſe
ſecondary cauſes being part of them inconſtant, and not to be
obſerved; as for example, The alteration of Winds, and part
(though terminate and fixed) unobſerved for their multiplicity,
as are the lengths of the Straights, their various inclinations
wards this or that part, the ſo many and ſo different depths of the
Waters, who ſhall be able, unleſs after very long obſervations, and
very certain relations, to frame ſo expeditious Hiſtories thereof, as
that they may ſerve for Hypoth eſes, and certain ſuppoſitions to
ſuch as will by their combinations give adequate reaſons of all the
appearances, and as I may ſay, Anomalie, and particular
rities that may be diſcovered in the motions of the Waters? I
will content my ſelf with advertiſing you, that the accidental
cauſes are in nature, and are able to produce many alterations;
for the more minute obſervations, I remit them to be made by
thoſe that frequent ſeveral Seas: and onely by way of a
ſion to this our conference, I will propoſe to be conſidered, how
that the preciſe times of the fluxes and refluxes do not onely
pen to be altered by the length of Straights, and by the
rence of depths; but I believe that a notable alteration may alſo
proceed from the comparing together of ſundry tarcts of Sea,
different in greatneſs; and in poſition, or, if you will,
tion; which difference happeneth exactly here in the Adriatick
that can fall under the comprehenſion of our knowledge, which,
as you well know, may not entertain any concluſions, ſave onely
thoſe that are firm and conſtant, ſuch as are the three kinds of
riods of the ebbings and flowings; for that they depend on cauſes
that are invariable, ſimple, and eternal. But becauſe that
condary and particular cauſes, able to make many alterations,
termix with theſe that are the primary and univerſal; and theſe
ſecondary cauſes being part of them inconſtant, and not to be
obſerved; as for example, The alteration of Winds, and part
(though terminate and fixed) unobſerved for their multiplicity,
as are the lengths of the Straights, their various inclinations
wards this or that part, the ſo many and ſo different depths of the
Waters, who ſhall be able, unleſs after very long obſervations, and
very certain relations, to frame ſo expeditious Hiſtories thereof, as
that they may ſerve for Hypoth eſes, and certain ſuppoſitions to
ſuch as will by their combinations give adequate reaſons of all the
appearances, and as I may ſay, Anomalie, and particular
rities that may be diſcovered in the motions of the Waters? I
will content my ſelf with advertiſing you, that the accidental
cauſes are in nature, and are able to produce many alterations;
for the more minute obſervations, I remit them to be made by
thoſe that frequent ſeveral Seas: and onely by way of a
ſion to this our conference, I will propoſe to be conſidered, how
that the preciſe times of the fluxes and refluxes do not onely
pen to be altered by the length of Straights, and by the
rence of depths; but I believe that a notable alteration may alſo
proceed from the comparing together of ſundry tarcts of Sea,
different in greatneſs; and in poſition, or, if you will,
tion; which difference happeneth exactly here in the Adriatick
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