r 44 2 1 
1 flatter myfelf, your Lordfliip will excufe me, if 
I do not attempt to deduce any confequences, at pre- 
fent, from the above obfervations, either with refpedt 
to the law, which the force of gravity obferves in its 
changes in different latitudes, or with refpedt to the 
figure of the Earth, which it has been fuppofed might 
be determined from experiments of this kind alone, 
independently of any others, the great Sir Ifaac New- 
ton having himfelf fet us the example. If the body 
of the Earth was homogeneous throughout, not only 
the figure of the Earth, but alfo the law of the vari- 
ations of gravity in different latitudes would be given, 
find would be the fame as Sir Ifaac Newton has de- 
fcribed them. But if the Earth be not homogeneous, 
and there feems great reafon, from late experiments, 
to doubt if it be fo, we can form no certain conclu- 
lions concerning the figure of the Earth, from know- 
ing the force of gravity in different latitudes ; as this 
force muft depend not only on the external figure, but 
alfo in the internal conftitution and denfity of the 
Earth. 
\our Lordfhip will, perhaps, think, many more 
experiments, not only of the kind, which I have the 
honour to give an account of to your Lordfhip, but 
alfo of other different kinds, to be neceffary, before 
we fhall be able to infer any thing with certainty, 
concerning the internal conflitution of the Earth, or 
even to determine its external figure. But every ex- 
periment is ufeful, which tends to throw a light over 
this intricate fubjedt, and to fhew the perfedl agree- 
ment of the laws of nature, with the adfual conftitu- 
tion of things. 
In 
