mm 
proportion holds in both, after the gradual! increafe of the Tydes 
riling from the Neap to the Higheft Spring - and the likede- 
creafeof its Hight till Neap again is deduced. 
$. The higheft Menftmal Spnng-Tyde is aiwayes the Third 
Tyde after the Nerv> or Full Moon $ if a Crofs-wind do not 
keep the water out $ as a North- BaB or North-Weft ufually doth 5 
whofe contrary Winds, if ftrong, commonly make thofe to be 
High-Tydes upon our Southern- Coafts, which otherwife would 
be but low. 
4, The Higheft- Springs make the Lcwft-Ehh? (though I 
am inform'd by an expert Water-man, that it fometimes hap- 
pens, that there may be a very Low Ebb, though no High- 
Spring, which they terme an out-let or Gnrgts ot the Sea % as 
when a great Storme chances off at Sea , and not on the 
Land.) 
5 . The Water neither flows nor ebbs alike in refpeft of equal 1 
degrees % but its Velocity increafeth with the Tyde till juft at 
Mid-water, that is, half flowne 5 or at half-Floud, at which time 
the velocity is ftrcngeft 5 and fo decreafeth proportionably till 
High- Water or Full Sea. As may be guefs'd at by the follow- 
ing Scheme , colle&ed from my Ioofe Papers, containing the Ob- 
fervations, as they were made ae feverall times and places : 
Which I rather ftt down as a (landing proportion of degrees in 
the generalL than to adequate every fingle Flux or Reflux fo ex- 
actly as to half inches or the like 5 but yet it may beare the odd 
minutes above fix houres well enough. And it is farther to be 
noted, that, although this bereftrained to Plimouth* Haven, or 
the like, where the Water ufually rifeth about 16. Foot ( I fay , 
ttfuaUy, becaufe it may vary in this Port from the loweft Neap 
to the Higheft Annuall Spring above 7 or 8 Foot) yec it may 
indifferently ferve for other places, where it may rife as many 
fathom, or not fo high, by a perpetuall Addition or$ubftra£ii : 
on. 
; , I The 
