would in fact destroy his pretensions to 
either_since it would be a contradiction 
in terms even to suppose they were both 
true;) nor does it appear that either Kep. 
ier or Halley after him, ever thought or 
suggested, that the supposition was in a- 
ny degree applicable to the sun, the stars, 
and all other planetary bodies ; or that it 
was probable or possible that the poles of 
the earth might be open. 
As to the two propositions laid down 
by D. P. the overthrow of which is to cause 
D. P. to ‘‘believe in his (Symrnes’s) theo¬ 
ry,” it is thought they are sufficiently re¬ 
plied to for the present, in Symmes’s an¬ 
swer of the 15th September last, which 
which was published in the Spy of 2d Oc¬ 
tober, and which it does not appear U. P. 
had yet seen. D. P. will also find in the 
National Intelligencer of the 2d October, 
and the Spy of the 13th November, 1819, 
a reply from the editor of the Petersburg)! 
Intelligencer* to the two positions above 
alluded to. 
On the whole, it will readily be allow¬ 
ed, by all those who are neither so envi¬ 
ous nor so captious as D. P., that there is 
sufficient difference between a single hoi- 
o i 
loiu globe, inclosing a luminous ball, ac¬ 
cording to Euler; or a loadstone nucleus, 
according to Kepler and Halley; or an 
idea of the supposed possibility of the ex- \ 
istenceof a nest of inaccessible imperfor¬ 
ate spheres:—and a declared system of 
universal concentric planetary spheres, 
with immense polar openings ; to consti¬ 
tute, for the latter, a separate, a distinct, 
and a new Theory of the Earth . 
Cincinnati Reading-room, > 
November 25, 1819. 5 
x 
*Capt. S. acknowledges the justice done him 
by the Editor of the Petersburg!! Intelligencer, 
in styling the new Theory, Symmes’s, and main¬ 
taining the originality of his idea of open poles j 
but at the same time, regrets that he should 
have inconsiderately said, that, “ this is the 
only circumstance which appears new in the 
theory of Capt. Symmes,” while from the fore¬ 
going illustrations there appears to be so many 
points of dissimilarity. 
