Royal Society. 207 
when ihe is under it, fo as to make high-water at the moon's 
letting, and low- water at the moon's riling j but on the con- 
trary, the moon, being to the fouthward, makes high-water 
at nfing, and low-water at fetting, it ebbing all the time /he 
is above the horizon. 
The caufc of this odd appearance is propofed by Mr. Neivton 
to be from the concurrence of two tides, the one propagated 
in fix hours out of the great Soutb Sea along the coaft o^^ China, 
the other, out of the Indian Sea, from between the iilands in 
12 hours, along the coaft of Malacca and Cambodia ^ one of 
thefe tides, being produced in northdaritude, is, as has been 
laid, greater, when the moon being to the north oF the Eqt4a' 
tor IS above the earth, and lefs when fl-ie is under the earth; 
the other of them, which is propagated from the Lidian Sea^ 
being raifed in fouth-latitude, is greater, when the moon 
dechnmg ro the fouth, is above the'earth, and lefs when Hie 
is under the earth ; fo that of thefe tides alternately greater and 
lefTer, there comes always fucceffively two of the greater and 
two of the leffer together every day 5 and the high^ water fulls 
always between the times of "the arrival of the two greater 
floods, and the low-water between the arrival of the two lelTer 
floods 5 and the moon coming to the BquinoEilak and the 
alternate floods becoming equal, the tide ceafes, and the water 
Magnates 3 but when fhe has pafled to the other fide of the 
Equator^ thofe floods, which in the former order were the 
leall, now becoming the greatefl, that which before was the time 
of high-water, now becomes that of low-water, and e contra ; 
fo that the whole appearance of thefe ftrange tides is naturally 
deduced from thefe principles, and is a great argument of tha 
certainty of the whole theory. 
A Child horn alive 'without a Brain; hy 'Dr. Ch. Picfloq, 
Phil. Tranf N° %z6. p. 439. 
AL L the external parts of this child were well proportion-^ 
ed, only that it wanted the Cranium, Cerehrunh and Cere- 
helium-^ the vifage was a little deformed 5 it had eyes and ears 
like a monkey, and it was all over the body more hairy than 
ordinary^ in lieu of the bram, there was nothing but a fob- 
ftance like congealed blood, covered with a membrane, and 
inftead ot the optic nerves there v/ere only found fome fmall 
ligaments. 
M. du Verney^ profeiTor of anatomy in the royal garden at 
Taris, traced in this fubjed the 8th and 9th pairs of nerves 
and 
