Insulation effect of black feathers on snow, verso Image Read more about Insulation effect of black feathers on snow, verso
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Snow drift around survey station, copy 6, verso Image Read more about Snow drift around survey station, copy 6, verso
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Overhead view of snow station equipment, copy 1 Image Read more about Overhead view of snow station equipment, copy 1
Meteorograph or anemometer at Contact Pass, verso Image Read more about Meteorograph or anemometer at Contact Pass, verso
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Dr. Church and colleague constructing wind charger support, copy 1, verso Image Read more about Dr. Church and colleague constructing wind charger support, copy 1, verso