pfo'tfcjfedibirtrasr aconjedure to be exacted ■ and; upon that 
Examination, redified, itthere be occafiou ; or reieded if ir 
will not hold water. j 3 
i. To the fir ft objedion of thofe y.oomention 5 - That it ap* 
pears not bow two Bodies , that have no tye., can.have one common Cen- 
ter of Gravity ; that is ( for fo I underftand the intendment of 
the objection ) can ad. or be aded in the fame manner, as if 
they were conneded: I fhall onely anfwer,. that it is harder to 
ftiew How they have, than That they have it. That the Load- 
ftoneand Iron have fomewhat equivalent to a Tye 5 though 
we fee it not, yet by the cffeds we know. And it would bo 
eafy fo fliew,that two Load ftones, at once app!ycd,in different 
portions, to, the fame Needle, at fome convenient diftance ; 
will draw ir 3 not to point diredly to either of them, but to foms 
point between both 5 which point is, as to thofe two, the com * 
wion Center of A ttrabhon s and it is the fame 3 asif fotnc one Load? 
ftone were in that point. Yet have thefe two Load ftones no 
connexion or tye, though a Common Center of Virtue accord* 
ing to which they joyntiy ad. And; as to the prefent cafe, 
Bow the Earth and Moon are connedcd ; I will not now un- 
dertake to fhew ( nor is it neceffary to my purpofe ; ) but, That 
there is fomewhat, that doth conned them, ( as much as what 
conneds the Load.ftone, and the Iron,.which it.draws,) is paft 
doubt to thofe, who allow them to be carryed about by the 
Sun, as one Aggregate or Body, whofe parts keep a refpedive 
pofition to one another ; Like as fupiter with his four Satellite ^ 
and Saturn with his one. Some Tye there is, that makes thofe 
Satellites attend their Lords , and move inn Body ; though we 
do not See that Tye, nor /Aw.the Words of Command, And 
fo here. • 
2;. To the fecond. objedion y That, at Chatham and in the 
Thames , the A nnual S pring. tydes , happen about the Mquinoxes > mt 
( as tins Hypothecs doth fuppofe el [where to have been obferved ) about 
the beginingof February cmdSNovembtri. If their meaning be, that 
Annual High Tydes, do then happen, and then onely : If this 
prove true, it will eafe me ofhalf my work. For it is then eafi- 
ly anfwesedg that it depends upon the obliquity cfthe J^odiac^i 
she pajts of the Aquino dial ajifweringto. equal parts of the 
