![LXVIII.
<i>On some phænomena observed on glaciers, and on the internal temperature of large Masses of ice or snow, with some remarks on the natural ice-caves which occur below the limit of perpetual snow</i>]()
LXVIII.
<i>On some phænomena observed on glaciers, and on the internal temperature of large Masses of ice or snow, with some remarks on the natural ice-caves which occur below the limit of perpetual snow</i>Herschel, John · Philosophical Magazine Series 3 · 1842