...of the observation of Professor Forbes on the subject is, that a glacier is an imperfect fluid, or viscous body, which is urged down slopes of a certain inclination by the mutual pressure of its parts ; and a writer in Murray's " Swiss Guide" illustrates this sort of motion by that of lava descending...

...entertained. My theory of glacier Motion then is this :• — 'A GLACIER is AN IMPERFECT FLUID, OR A VISCOUS BODY. WHICH IS URGED DOWN SLOPES OF A CERTAIN...INCLINATION BY THE MUTUAL PRESSURE OF ITS PARTS. The sort of consistency to which we refer may be illustrated by that of a moderately thick mortar, or of...

...farther entertained. My theory of Glacier Motion then is this : — A GLACIEB is AN IMPERFECT FLUID, OR A VISCOUS BODY, WHICH IS URGED DOWN SLOPES OF A CERTAIN...INCLINATION BY THE MUTUAL PRESSURE OF ITS PARTS. The sort of consistency to which we refer may be illustrated by that of moderately thick mortar, or of...

...these observations, and deduced from these facts, is this : — " A glacier is an imperfect fluid or a viscous body, which is urged down slopes of a certain...inclination by the mutual pressure of its parts." This modification of Saussure's theory is so consistent with facts, and so plain and obvious when announced,...

...Professor Forbes's own theory of glacier motion is therefore this: — A glacier is an imperfect fluid, or viscous body, which is urged down slopes of a certain inclination by the mutual pressure of its parts : — and be illustrates and explains this view by such a variety of practical proofs and observations...

...Professor Forbes's own theory of glacier motion is therefore this: — A glacier is an imperfect fluid, or viscous body, which is urged down slopes of a certain inclination by the mutual pressure of its parts : — and he illustrates and explains this view by such a variety of practical proofs and observations...

...Professor Forbes, which is embodied in the following proposition — a <1LAC1ER IS AN IMPKRFECT FLUID,' OR A vISCOUS BODY, WHICH IS URGED DOWN SLOPES OF A CERTAIN INCLINATION, BY THB> -MUTUAL PRESSURE OF ITS PARTS. The idea embodied in this proposition is, doubtless, bold and startling....

...long-continued observations, is expressed in these words:— " A glacier is an imperfect fluid, or a viscous body, which is urged down slopes of a certain inclination by the mutual pressure of its parts."—(p. 365). And the only hesitation we feel in adopting this opinion lies in the single word...

...of wetness or infiltration. It ' is an imperfect fluid, or a viscous body, which is urged down the slopes of a certain inclination by the mutual pressure of its parts, and he compares it to a thick mortar, or the contents of a tar-barrel poured into a sloping channel....

...glacier phenomena, is that of Professor Forbes, who asserts, that " a glacier is an imperfect fluid, or viscous body, which is urged down slopes of a certain inclination by the mutual pressure of its parts ;" nearly in the same manner as lava descends from the mouth of a volcano, or honey would flow from...