idden.
Our expectations have been falsified so often that we feel ourselves
wholly incapable as weather prophets--therefore one scarce dares
to predict a blizzard even in face of such disturbance as exists. A
paper handed to Simpson by David, [28] and purporting to contain a
description of approaching signs, together with the cause and effect
of our blizzards, proves equally hopeless. We have not obtained a
single scrap of evidence to verify its statements, and a great number
of our observations definitely contradict them. The plain fact is
that no two of our storms have been heralded by the same signs.
The low Barrier temperatures experienced by the Crozier Party has
naturally led to speculation on the situation of Amundsen and his
Norwegians. If his thermometers continuously show temperatures below
-60 deg., the party will have a pretty bad winter and it is difficult to
see how he will keep his dogs alive. I should feel anxious if Campbell
was in that quarter. [29]
_Saturday, August_ 5.--The sky has continued to wear a disturbed
appearance, but so far nothing has come of it. A good deal of light
snow has been falling to-day; a brisk northerly breeze is drifting
it along, giving a very strange yet beautiful effect in the north,
where the strong red twilight filters through the haze.
The Crozier Party tell a good story of Bowers, who on their return
journey with their recovered tent fitted what he called a 'tent
downhaul' and secured it round his sleeping-bag and himself. If the
tent went again, he determined to go with it.
Our lecture programme has been renewed. Last night Simpson gave a
capital lecture on general meteorology. He started on the general
question of insolation, giving various tables to show proportion of
sun's heat received at the polar and equatorial regions. Broadly, in
latitude 80 deg. one would expect about 22 per cent, of the heat received
at a spot on the equator.
He dealt with the temperature question by showing interesting tabular
comparisons between northern and southern temperatures at given
latitudes. So far as these tables go they show the South Polar summer
to be 15 deg. colder than the North Polar, but the South Polar winter 3 deg.
warmer than the North Polar, but of course this last figure would be
completely altered if the observer were to winter on the Barrier. I
fancy Amundsen will not concede those 3 deg.!!
From temperatures our lecturer turned to pressures and the upwar
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