( IS ) 
An 'Account of the f ongoing Tide-Table* 
3y the fame Hand. 
GOnfidering how much the River of Thames is fre- 
quented by Shipping, and how long it has been 
the Chief Place of Commerce in thefe Parts of the World, 
one would tbitik our Seamens Accounts of its Tides 
filould be very exad, and their Opinions concerning 
them Rational 5 whereas if they be enquired into, no* 
thing will be found more Erroneous and Idle. 
For they taking notice that the High-waters at and 
near the New and Full Moons^ run an hour and a hal^ 
or two Points of the Compafs longer than at the gar- 
ter s^ conclude generally, that *tis the Inconftancy of the 
Winds that caufes it, never confidering how improbable 
it is, that fo inconftant and changeable a Caufe (hould 
efFed (b conftant an Ineqmlity, 
In which Opinion the Tide-Tahles of our Almanackj 
have contributed much to confirm them 3 for therein the 
Moons Age is got by the EpaSs^ thence the Time of her 
Southing by the allowance of 48 minutes of Time for 
every Days Age, sls if her Diurnal Motions sind Returns 
to the Meridian were altogether equable, than which 
nothing is more falfe $ and then the Time of the High" 
Water at London- Bridge is made by adding 5 hours to the 
Time of her Southing fb got, as if there were the fame 
conftant fpace of Time betwixt the Moons Southings and 
the High' Water s^vjhXch by this means are often made two 
hours different from Truth and Experience. 
To amend this fault, fome of the more skilful have 
Calculated the Times of the Moons Southings exsL&ly^md 
then made thdt Tide-Tables by adding 3 hours conftantly 
to them, by which means, tho they agreed nearer with 
Experience at the Spring-Tides^ or near the iVe2j?and fuU 
Moon^ yet they erred not much lefs (than by the old 
way of account they would have done) at xh^ J^uarters^ 
or in the Keap-Tides 3 the inequality uf the Tides being 
above 
