tor must at a given point steer south, or he 
vvil! comeback to the place he left at the 
ver^e, &c. The Capt. has executed on 
wood,’a'diagram or map of a part of the 
northern hemisphere, with the interior por¬ 
tion attached,in .planisphere'wilh the # par- 
ralies of latitude, &c. The country lie 
calls SYMMESONIA. This is but jusY ; 
for should this undiscovered country prove* 
a reality, we trust our modern philosopher 
will not suffer the wrongs of a Columbus . 
From the National Intelligencer. 
Gentlemen— 
The Ice-Bergs, or Ice-Islands, mention¬ 
ed in your paper of the 17th instant, as 
having been recently seen in north lat. 42, 
with earth on some of them, and occupied 
by birds and seals, are, I conceive, frag¬ 
ments of the concave crust of th** sphere, 
which have been undermined until broken 
off from where the surface stratum is form¬ 
ed of christalized water, in lieu of chrys- 
talized silex, lime, or other mineral; on 
the surface of which ice-rock, I suppose, 
moss once grew, and ultimately formed a 
soil, in which trees or other vegetables 
were produced. See that part of Macken¬ 
zie’s Journal where he was beyond the line 
I mark for the real verge : he there found 
trees growing on an ice formation, where¬ 
on the soil was thin. 
Some of these floating ice-islands being 
now found unusually far south, indicate 
to me that there has been much rain re¬ 
cently in the concave ; which has so in¬ 
creased the current of the north sea, as 10 
drift the deep ice further south than usual. 
It seems as if the sea, like the atmosphere, 
was divided into strata, which permits, as 
in the clouds, an under-current, when there 
is none, or even a contrary one, above; 
for, such ice-islands are seen to progress, 
and" plough through the surface-water, like 
the prow of a ship, even against the wind. 
If the concave floods are this year un¬ 
usually high, it is probable that the quan¬ 
tity of last winter cake-ice broken up and 
drifted out, a* far as the pass between 
Greenland and Spitzbergen, must be so 
great as to bar any vessel from passing 
j through it until it is dissolved or dis- 
1 persed. RepectfuHy, 
JOHN fcLBVES SYMME3. 
o/iic, May 29i/i, 1323. ; 
