bn the Temperature of the Eastern and Western Hemispheres ¢209 
,as abounding with banks of different depths, are remarkable for 
currents, and fegs or mists. Fogs or mists have been remarked 
“in the Channel for a week together, even in summer. © ‘The North 
Sea, the bottom of which is-composed of sand banks, abounds 
-with currents; and the air commonly teems with fogs and mois- 
ture; while, on the other hand, places in-land, in the same pa- 
tallels of latitude, are remarkable -for the peculiar brightness of 
their northern. sky, glittering constellations, and constant .ap- 
pearance of the aurora borealis, or milky-way. The Dogger- 
-bank is remarkable for its frequent fogs and mists; but the banks 
of Newfoundland are notorious for dense fogs and. heavy mists, in 
every season and in every year. The high temperature of the 
Waters in the powerful current of the gulf of Florida, which 
extends as far as Newfoundland, must produce a degree of. va- 
-pour on meeting with strong contrary.currents of a-low tempera- 
ture; and this must be further increased by a ‘certain degree of 
percussion and revulsion oceasioned by the various immense sand 
banks about it, that naturally agitate the contending currents. 
‘In addition to this, if those operations or changes (so widely dif- 
ferent in their nature, and which I already have noticed to take 
plave,) in the respective extensive boundaries of Newfoundland be 
considered, the gulf of Newfoundland itself; and the banks from 
‘their particular position and peculiar properties, (the natural foeus 
of mutually counteracting influence,) the causes of those fogs and 
Mists may not remain altogether inexplicable. \ I think the bank 
‘fogs and mists rather prevail at the change of the seasons: if 
this be true, variation of temperature, or winds of different qua- 
‘ities, also contribute to their production. That these mists or 
. fogs tend in their turn to produce irregularity of temperature-all 
‘round to a certain extent, may be reasonably inferred. 
_ , In winter, in general, so excessive is the cold at night, and so 
‘cloudless the sky by day, that the presence of even ‘an oblique 
Sun, if consequence of the susceptibility of the system thus in= 
_duced, renders the air, though without relative increase of tem- 
perature, almost congenial to the feelings.~-No one would sup- 
“pose that “ tlie bleak coast of savage Labrador’? reflects in 
summer the most intense heat. ee 
From these natural occurrences it will I- imagine be easily in- 
“ferred, as the thermometer also proves, that the temperature. of 
‘this watery and woody world has its maximum extremes, intense 
“heats and excessive colds; and further, that it greatly varies 
du’ mg either of these intervals or seasons. 
* The great mutability of temperature in this part of America, 
as being so generally admitted, no. one, -1 believe, will attempt 
‘to refute; nor, indeed, its baneful influence, whatever our ac- 
‘quaintance with the extent of it may be among the native inha- 
Vol. 52, No, 245. Sept, 1818, O pbitants, 
