Full resolution (JPEG) - On this page / på denna sida - Sidor ...
<< prev. page << föreg. sida << >> nästa sida >> next page >>
Below is the raw OCR text
from the above scanned image.
Do you see an error? Proofread the page now!
Här nedan syns maskintolkade texten från faksimilbilden ovan.
Ser du något fel? Korrekturläs sidan nu!
This page has been proofread at least once.
(diff)
(history)
Denna sida har korrekturlästs minst en gång.
(skillnad)
(historik)
‘Through Norway with a Knapsack’ was
published, that low temperature is only one of the
factors in the formation of glaciers (see chap. xiv.
p. 246 of new edition, where these reflections,
suggested by the spray glacier of the Skeggedal, are
reprinted without alteration), that an increase of
atmospheric humidity, and of consequent winter
snowfall, may produce the same effect as lowering
of temperature.
The importance of this second factor in glacial
climate is now generally admitted, and taking this
into consideration it is quite possible that a great
glacial epoch may have been produced with little
or no primary lowering of the general temperature
of Europe, or of the northern hemisphere,
provided other causes combined to produce a
considerable increase of atmospheric precipitation. This
humidity would of course produce what I may
call a secondary depression of temperature by the
necessary action of the accumulated snow. I
merely refer to the possibility of the glaciation
being produced by the one formerly neglected
factor, viz. increased humidity; but do not
therefore contend that such was the case, believing that
both factors combined actually to produce the
effect; that the temperature of the northern
hemisphere was lower than at present, but not
<< prev. page << föreg. sida << >> nästa sida >> next page >>
