"In some part of the middle states, a climate similar to that of England
may easily be found."
Inform our old acquaintance H----, that if he emigrates to America on the
strength of this assertion of Cooper, (on which, you tell me he so much
depends), he will, on his arrival, find himself egregiously mistaken. The
sameness of latitude does not always indicate similarity of temperature:
there are many other causes, which contribute to make this a very
different climate from that of Great Britain.
The middle states of North America are hotter and colder _at intervals_,
not only than England, but than any part of the Old Continent, under the
same parallel of latitude.
Jefferson says, "Our changes from heat to cold are sudden and great. The
mercury in Fahrenheit's thermometer has been known to descend from 92 to
47, in thirteen hours."