not » however, apply- to the summer that 
Jnust (according to my theory) eX1 ^ t5 ] er e 
about January or February, the neat or 
which, must arrive through the hollow 
open spheres from the South pole, where 
the sun is then shining; nor can it well 
apply to the other two winters which 
must occur there, the one in the latter 
part of November and the other in the 
early part of March, as the air (probably 
always nearly balanced within and be¬ 
tween the spheres) must then have a ten¬ 
dency to rise from the South pole which 
is next the sun, to the North pole which 
is highest in relation to that body (as the 
blaze of a comet rises contrary wise from 
the sun’s gravity, whether going towards 
or from him) hence no considerable va¬ 
cancy or condensation can happen at such 
seasons within the North polar opening-, 
to produce to us southerly winds; but 
rather a protrusion of air from within, 
must occur, which protruded air becomes 
colder by the distension of its molecules, 
on coming southward, where gravity and 
the incumbent weight of the atmosphere 
decreases: our usual thaw (most observa¬ 
ble in New-Englamf) about January or 
February, may be somehow connected 
with the last described summer. 
An examination of the diagram of the 
earth’s spheres, as engraved in my arctic 
memoir, with the relative position of the 
sun, subjoined by the observer, for differ¬ 
ent seasons of the year, will show the ne¬ 
cessity of their being relatively three 
summers and three winters under the ver¬ 
ges, as above described. 
I am told that there are three annual 
freshets in the Ohio, that can be calcula¬ 
ted and depended upon with tolerable 
certainty, which occur in the following 
order: early in the spring, near midsum¬ 
mer, and near the middle of autumn; be¬ 
sides which one or more intermediate 
freshets occur with some degree of regu- 
larityjbetween that of spring and that of 
midsummer. It would be well to ob¬ 
serve whether the above described three 
freshets, do not coincide with the three 
changes from heat to cold, or from cold to 
heat, under the verges, which changes or 
seasons, are describee oi embraced in this 
note. 
jN(h cleves symmes. 
