( 45^ ) 
Laflly, to demonftrate the excellency of this Doctrine, 
the Example of the Tides in the Port of Tutikittg in cAi- 
na^ which are fo extraordinary, and differing trom all 
others we have yet heard of, may fuffice. In this Port 
there is but one Flood and Ebb in 14 Hours ; and twice 
in each Month, viz. when the Moon is near the itqui- 
no^lial there is no Tide at all, but the Water is ft^nant ; 
but with the Moons declination there begins a Tide, 
which is greatefl: when fhe is in the Tropical Signs: only 
with this difiFerence,that when the Moon is to the North- 
ward of the iSquinodial, it Flows when (he is above the 
Earth, and Ebbs when (he is under, fo as to make 
High- water at Moons-fetting, and Lo w- water at Moons* 
rifing: But on the contrary, the Moon being to the 
Southward, makes High-water at rifing and Low-water 
at fetting; it Ebbing all the time Ibe is above thVHori* 
2on. As may be (een more at large in the Philofophical 
Xranfaiiim^ Num. 162. 
The Caufe ©f this odd Appearance is propofed by 
Mr. Newton, to be from the concurrence of two Tides ; 
the one propagated in fix Hours out of the great South* 
Sea along the Coaft of China ; the other out of the 
hJian-Sea^ from between the Iflands in twelve Hours, 
along the Coaft of Malacca and Camlodia. The one of 
thefe Tides, being, produced in North- Latitude, is, as 
has been faid, greater, when the Moon being to the 
North of the Equator is above the Earthy and lefs when 
fhe is under the Earth. The other of them, which is 
propagated from the Indian-Sea, being raifed in South 
Latitude, is greater when the Moon declining to the 
South is above the Earth, and lefs when (he is under the 
Earth : So that of thefe Tides alternately greater and 
lefler, there comes always fucceflively two of the great- 
er and two of the lefler together every day ; and the 
Mtjgh-water falls always between the times of the arri- 
vaL 
