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+80° below and -60° above, a difference of
140°. I believe the greatest recorded
range of natural temperatures to which
privileged men have been subjected.
I am not aware as yet of the slightest
ill effect from this cause. Indeed those
catarrhal and brochitic affections known
as colds were unknown, even under
circumstance of negligent and useless
exposure.

We would suppose in accordance
with known principles that the nearer
our standard of habitual temperature
approximated to the extreme which we
were called upon to endure the less
would that extreme oppress us. However
this may be the habits of the human
races, indicate a contrary view.
The Esquimaux Iglöes of Smiths
Sound are kept so intolerably warm
that the natives keep entirely naked.
I could hardly stand the heat. The
northern asiatics, especially the Yakuti
and [Ischuchi?], as well as our own
N. W. & [?] tribes live in an atmosphere
of excessive warmth. The [Pologs?]
of the [Ischuchi?] are in effect heated
air baths, above blood heat, and among
my friends at [Amuake?] (the[? settlment?])
80° & 90° are habitual.

The transition from the vapour bath
to excessive cold as practised
by the Nootka Sound and many other
tribes, is now recognized by modern thera-
-peutic phisiology.

The use of ice & [?] iced bath by the inhabitants of the
tropics is in the same category.