C ^^5 ) 
The Parts diftinguifliing the Sex are difcovcrabic, 
thofeofthe Male affixc to the Extremity of the Kidney, 
the Females had a flender Gland tranfverfly lying near 
the Bowel ; but of this 1 dare not fay much till frefii 
Subjects allow further Examination. Neither is this the 
only Fifh of this Kind ; for I find in Tho. Bartholine's 
Sixteenth Hiftory of his Second Century of Anatom. 
Hiftor. 1654. a Xiphia with Two Young form'd in the 
Intejitnum Return ; which too has no Ribbs as well as the 
Eele. In Salt-water Eels, I have not found the like, 
though fearcht for ; becaufe, I am of Opinion, they do 
not breed , but are of the fame with the Frefli-water 
ones, fince fiich multitudes of Frefb- water Eels go down 
to Sea, and cannot return, yet are never taken at Sea^ 
among the many brought hither 1 and there are f^ejii^ 
gia Q{ their Beards in the Frefli- water ones. 
I fliall acquaim you with one thing more obfervable 
at our Sea^Coaft, with Relation to Mr. Pafcalh Obfer» 
vations that People that are fick are obferv'd to change 
at the Turns of the Tide at the Place; fo as this Notion 
has obtained among all the Maritime Towns; Up-Land,. 
with us, it does not conftantly hold, which may be ac-- 
counted for, ( if the Moon's EfFeit be Fluidity, as in 
Frofts is feen, a New- Moon ever Thawing, and is a* 
greable enough to a Neighbouring Body of fo quick a 
Motion) Upon dry Land the Moon may not have the 
fame Force, For I obferve in Qz^t^Jamess Voyage at 
Charleton-IflanJ^ih^ fix'dnefi of the Winter Frozen Air, 
opcafioned the difference of Tides at the New and Full 
to be fcarce greater than the common or tieap ones 5 
whereas Spring-Tides advanc't with the Summer. I 
have ob(erv*d Agues, Tertian I mean, to come when 
the Moon has come to an Angle, as in One or Two ex* 
aftly wJien the Moon was Setting, and the fucceeding 
