f 1033 ) 
Greater Eftuaries^are but Shortened,and become Narrower, 
than they had formerly been.- 
And, as to the Thames in particular 5 It feems very 
Evident, (if we confider their Situation, and the Nature 
of their Soil,) that much of the Low Grounds ( in Kenp 
and Efexy) on both fides of the Mouth of thQ 7 hams 
(adjacent to the Sea, ) had formerly been Sea, ( as well 
as that of Rommy Marfti. J And when the Mouth of the 
Thames was fo much wider, no doubt but it Flowed 
much further than bow it doth. And, how far, who 
can tell > 
It may perhaps be objeded, that the fmall Rivers now 
remaining, in the bottom of thefe Vallies, which may 
have been fuppofed (in former times) to have been 
JEftuariess do now run more Wriggling (with more 
Turnings and Windings ) than do thefe Vallies. But 
this need not at all to ieem ftrange, when as we may 
daily fee the fame, in the Bottom of a Muddy Ditch 
(or Water, courfe) when the Water is almoft Drained- 
ofF, the Mud yet remaining foft : the little Water, yet 
remaining, will work out of it felf (amidft the Mud) a 
Wriggling paiTage (according as the Mud will more, or 
lefs give way) much mdre Crooked than was fucti Ditch 
when full of Water. And the like m^aft needs happen 
in the (gradual) Draining of fuch Jiftuaries, according 
as the f foft J Earth will permit.; Which Crookednefs 
will continue^, when the, Banks oh both fides do (by de- 
grees) grovv firmer. ' * 
Thefe Notions I give ye, a5 my prefent Thoughts 5 
upon fuppofition that there have been fach an i/i/v///// 
'and fo broken. It in ought { have miftaken 5 I am 
willing to be fct right, by thole who are better acqaaint- 
€d with thefcSeas.tiian I am: with whom (at thisdilbnce) 
■i have not the opportoniry of difcourfingj for bcicer in- 
formation. 
Z z z z z z 2 
