(all) 
propofed but as aconjefturc to be examiaed and, upon that 
Examination, redified;, if there be occafion ; or rcjeded, if it 
Will not hold water. ^ 
I. To the^rft objeibionof thofe yon mentionj. That it ap^ 
-pears not horv two Bodies^ that have no tye, can. have one common Cen- 
ter of Gravity i that is ( for fo I underftand the intendment o£ 
the objecStion ) can adl or be aded in the lanre manner, as if 
they were Gonneded : I fliall onely anfwer^ thai ic is harder to 
fliew How they have, than That they have it. That the Load- 
ftoneand Iron have fomcwhat equivalent to a Tye 5 though 
we fee it not, yet by the effects we know. And it would be- 
eafy to fliew5that two Load-fl:ones,at once npp'ycd^in different. 
'pofitions> t© the fame Needle, at feme convenient diftance 
wiIldrawit5not to point diredily to eitheF ofrhemi but to forae 
point between both • which point is, as to thofe two, the com- 
men Center of JtiraUton ; and it is the famCjas if fomc 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 joyntly ad:. And as to the prefent cafei 
Hon? the Earth and Moon are connedtrd ; I will not nowui> 
dertake to fliew ( nor is it neceffary to my purpofe ; ) but, That 
there is fomewhatj tha^^ doth conned them, ( as much as what 
/ eonnedsthe Loadi-ftone, and the Iron^.whichit 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 
pofitlon to one another : Like as fupitermth his four Satellites^ 
Saturn with his one. Some Tye there is, that makes thofe 
^y/i^^/AV^j" attend their ior^/, and'move ina Body ; though wie 
do not that Tye, nor the Words of^Command* And 
fo here. 
25. To the fecond objedion^ That, at Chatham and in the 
ThameSy the Annual Spring-tydi^s^Jiappm about the Mquinoxes ; 
(as thts Hypothefis doth fuppofe el [where to have been'obferved^ about 
the h'egining of February and\November; If their meaning be^that 
Anmaal High Tydes, do then happen, andthcn onely : If this 
prove true, it will cafe meofhalf my work. For ic is then eafi- 
lyanfweFedj tliatit ii^\itnAsnf6v\thQ obliquity cf the Z^odiack,', 
ifee parts o£ the. JE^uinodial anfwsxing to equal pairtsof the 
Zodiacki. 
