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kable Accid<^nt ufually happening at thofe Seafon^.) Of thefe dif- 
ferent Sc^afons at Chepjiow bridge irom thofe of Rumney- AiarJI) , I 
gave you my remarks in a Letfer of mine to you in Murch fol- 
lowing. And the like differences, I fappofe^ will be obfervable 
on other Goafls, according as their pofitions be advantageous or 
difadvantageous to the one cr the other of the two Caufes, on 
which this rhanomenon depends. But finceit is not yet (it feems) 
agreed, Whether fuch an y^/7/^;/^/Phcenomenon do happen 5 or, if 
fo, not at that time 5 (fo that, for ought yet appears, it may be at 
theSeafonsl defign, thatij, between the Winter Solftice andthe 
t wo iEquinoxts on either (ide of it ^ though, on feveral Coafts.fe- 
verally remote,) I think it beft to let this part of the Hjpothefis 
ftand as it is^ unrevoked, as that, which, when it iliall be difcove- 
red and agreed on, flands ready enough to give a rational account 
of it, and, in the mean time, docs no hurt. And in fuch a Com- 
plication of Caufes fb abft rufe, fcarce any thing but Obfervation 
will determine, Vt^hich of the Caufes, and in what degree, is to be 
Judged predominant. 
And iftothisofthe<S*//»'sor £^r/As,be added that of the OW/- 
quity and Excentricity of the Aloon's OrbiU (of which, for the rea* 
fon above-mentioned, I had taken fo little notice,) it will, if it do 
no good, at left do no hurt. And 1 the rather think , it may be 
con(iderable,±)ecaufethe Earth and Moon's Appropinquation and 
Elongation, doth really alter the Diftanceof the CommonCenter 
of Gravity (of the Earth and Moon) from the Earth (rendring "the 
Earth^s Epcycle Elliptical O and much favors what Childrey 
obferves of the Moon in Ferig<eo^ And this js the fum of what 
I thought proper to return you, upon tboft Aqimadverfions , 
beings 8cc. ^ 
An Accomptof fbme Books* 
I. DISS ERTATIONES M^DICjS TRES: \. D$ 
Caujis fluxus Mevjirui Mnlierum, 2 ; De Syfxipathia varjarum 
Corporis par tin m cum Dtero^ 5. De Z)jh LaSis ad tabidof 
mejicundos^(& de immediato Corporis Aliment o.Auih,'^xd,x\z\{Q.Q 
Bay le, DoB, Medico. Tolofe, 1670. in 4*. 
THis Ingenious Author to prepare his Reader to a candid re- 
ception of thefe Difcourfcs, reprefents in the Preface?, hoW 
much mifchief and prejudice hath been done to knowledge both 
by 
