itfelf up, to iflhe from thence as often as ft enters there ; and 
the (cituation of thefe Gulfs contributes to the odcefs of this 
flux and reflux • of which -the Moonfeems to be :he principal 
caufe. 
There are twenty daies of each Moon, m which the courfe of 
the Euripus is regular, and ten, in which 'tis irregular , thac is to 
fay, five daies before and five daies after the New and Full 
Moon, the courfe ofit is regular and ftrongi and then you fcc 
there the like phaenonaena with thofeof the Ocean at B^urdeaux. 
The Sea hath two Fluxes and Refluxes in twenty four hours, 
and every day it retardeth almofl: an hour. But there are nine 
or tenchanges of the courfe of the water during the remaining 
ten daies of inequality 5 unlefs it blow hard, for then the courle 
changeth not above fix or fcven times* I once flayed on the 
Mill (which is under the Bridge^ li hour,and I faw the courle 
of the water change thrice, though the wind was pretty high ; 
and theWheets of theMill turn d as often djvers waies.Monfieur 
Ao^ldiHogue^ a Parifian Gentleman, being curious, ftaied there 
almoft a whole day witta^JamfJary ; and the Moon being near 
the Full, he obferv'd the fame thing that happens in the Ucean^ 
But though he defign d to ftay there full twenty four hours du- 
ring the irregular daies^he was diflVaded from it for fear of the 
Turks 5 that might take him for a Spieanddohimfomemif* 
chief, 
I faid, that for twenty daies the Flux and Reflux is as in the 
Ocean, or as at ^m^:^; but with this difference, that the water 
of the Ocean rifes many feet high; but in the Euripus it rifeth 
not much above a foot : befides, in the Ocean 'tis obferved,that 
the water in its rifiog flows 7';^^^ forts znd towards xht Land, 
' and in its full runs intd the Main; but in ihtEuripus when the wa* 
ter rifeth.it runs then into the Sea, and when it finks,it flows int^ 
the channel going towards f<?wj?^«^?w<>/?/<f. 
The fmall Gulfs,that are on the left fide of the port of NegrB^- 
pont, are fiird when the water rifeth; and emptied, running to- 
wards T/?^^^/<?^V^ or Co;2/?^/2i^/V2op/^,when itdefcends* I wrote 
to the F. Fabois, defirina hvm to obferve 5 and he took notice 
of the £amQ Confler^n^^^t^/,,^ that the waters of the B/^^y^ 
'^Sea ^ that come fr( . "'r'^(tQy./^y/..^-l; ^ drive the Euripus in its 
