. An account of the Arctic regions [microform] : with a history and description of the northern whale-fishery. Natural history; Sciences naturelles. â if 'U i II I - r â 41. i:i;:1:::;i III ill iH lit (' It \y i' 1 1, J,pflili (â t 'â ': ih â * Ji; I', l«1. , ' is ' i ; â â 1 - I,, ' 1 !' 1 ' ' ! 1 1 IL 'Mlii:; i'Cl- Nlil 108 ACCOUNT OF THE ARCTIC BEG IONS. the sun break out and operate on the upper surface so as to dissolve it, the water which results runs into the porous mass, proj^ressively fills the cavi- ties, and being then exposed to an internal tempe- rature sufficiently low, free
. An account of the Arctic regions [microform] : with a history and description of the northern whale-fishery. Natural history; Sciences naturelles. â if 'U i II I - r â 41. i:i;:1:::;i III ill iH lit (' It \y i' 1 1, J,pflili (â t 'â ': ih â * Ji; I', l«1. , ' is ' i ; â â 1 - I,, ' 1 !' 1 ' ' ! 1 1 IL 'Mlii:; i'Cl- Nlil 108 ACCOUNT OF THE ARCTIC BEG IONS. the sun break out and operate on the upper surface so as to dissolve it, the water which results runs into the porous mass, proj^ressively fills the cavi- ties, and being then exposed to an internal tempe- rature sufficiently low, freezes the whole into a solid body. Or if, when the ice has been cooled by a low temperature, a fog or sleet occur, it is frozen as it falls, and encrusts the body of the iceberg with an additional varnish of ice. Icebei^ are as permanent as the rocks on which they rest; for though large portions may be fre- quently separated from the lower edge, or,, by large avalandies from the mountain summit, be hurled into the sea, yet the annual growth replenishes the loss, and, probably on the whole, produces a perpe.^ tual inci^ease. But the annual supply of ice is not ow)y added to the uppesrpart^ but also to the ptecir pitou^eiest facing the sea; whiefa addition beiing run into, or suspended over the ocean, admits of new fragments being detached^ and of the renewal of the ritreouis surface which it presents to the eye after each separation. In some places, indeed, where the sea is almost perpetually covered with ice, the berg ©r glacier makes its way to a great ex* tent iato the sea, until it reaches th(? depth in the water,; of several hundreds of feet; and then being capable of large dismemberments, gives rise to the kind of > mountainous masses or ; icebergs, found afloat in such abundance in the sea to the westward. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of t
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Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectsciencesn
