The Glaciers of the Alps: Being a Narrative of Excursions and Ascents, an Account of the Origin and Phenomena of Glaciers and an Exposition of the Physical Principles to which They are RelatedTicknor and Fields, 1861 - 446 pages |
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Autres éditions - Tout afficher
The Glaciers of the Alps: Being a Narrative of Excursions and Ascents, an ... John Tyndall Affichage du livre entier - 1906 |
The Glaciers of the Alps: Being a Narrative of Excursions and Ascents, an ... John Tyndall Affichage du livre entier - 1860 |
The Glaciers of the Alps: Being a Narrative of Excursions and Ascents, an ... John Tyndall Affichage du livre entier - 1861 |
Expressions et termes fréquents
afterwards Agassiz Aiguille Aiguille du Dru Aiguille Verte ALETSCH GLACIER Alps appeared ascended atmosphere avalanche Balmat baton beams beauty Bennen blue Breithorn cascade centre Chamouni chasm climbed clouds Col du Géant colour crags crevasses crossed débris deep descended distance edge fall feet Finsteraarhorn fissures footing formed front frozen Glace Glacier du Géant Görner Grande Jorasse heaven height inches kamm Lauener Léchaud ledge length light liquid looked Lyskamm magnetic mass Mer de Glace Mont Blanc Montanvert Monte Rosa moraine morning motion mountain moved névé oblique observed once particles pass portion precipice produced Professor Forbes radiant heat rays reached regarding Rhone glacier ridge Riffelhorn rock rose round scene séracs side Simond slope snow snow-line sometimes sound stake steep stood summit surface Tacul Talèfre temperature theodolite thick tion Trélaporte valley vapour velocity wall waves wind
Fréquemment cités
Page 231 - For Nature beats in perfect tune, And rounds with rhyme her every rune, Whether she work in land or sea, Or hide underground her alchemy. Thou canst not wave thy staff in air, Or dip thy paddle in the lake, But it carves the bow of beauty there, And the ripples in rhymes the oar forsake.
Page 211 - Rhodora ! if the sages ask thee why This charm is wasted on the earth and sky, Tell them, dear, that if eyes were made for seeing, Then Beauty is its own excuse for being: Why thou wert there, O rival of the rose ! I never thought to ask, I never knew ; But, in my simple ignorance, suppose The self-same Power that brought me there brought you.
Page 309 - 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...
Page 438 - Here is some such paste baked in this house under my own superintendence. The cleavage of our hills is accidental cleavage, but this is cleavage with intention. The volition of the pastrycook has entered into the formation of the mass, and it has been his aim to preserve a series of surfaces of structural weakness, along which the dough divides into layers. Puffpaste...
Page 432 - Sorby, and others, have furnished us with a body of evidence which reveals to us certain important physical phenomena, associated with the appearance of slaty cleavage, if they have not produced it : the nature of this evidence we will now proceed to consider. Fossil shells are found in these slate-rocks. I have here several specimens of such shells, occupying various positions with regard to the cleavage planes. They are squeezed, distorted, and crushed. In some cases a flattening of the convex...
Page 348 - Imagine a long narrow trough or canal stopped at both ends, and filled to a considerable depth with treacle, honey, tar, or any such viscid fluid. Imagine one end of the trough to give way, the bottom still remaining horizontal, if the friction of the fluid against the bottom be greater than the friction against its own particles, the upper strata will roll over the lower ones, and protrude in a convex slope, which will be propagated backwards towards the other or closed end of the trough. Had the...
Page 219 - Aber im stillen Gemach entwirft bedeutende Zirkel Sinnend der Weise, beschleicht forschend den schaffenden Geist, Prüft der Stoffe Gewalt, der Magnete Hassen und Lieben, Folgt durch die Lüfte dem Klang, folgt durch den Äther dem Strahl, Sucht das vertraute Gesetz in des Zufalls grausenden Wundern, Sucht den ruhenden Pol in der Erscheinungen Flucht.
Page 329 - This index of refraction is still more materially affected when a body passes from the solid to the liquid, or from the liquid to the gaseous condition...
Page 434 - ... right angles to the planes of cleavage.* In reference to Mr. Sorby's contorted bed, I have said that by supposing it to be stretched out and its length measured, it would give us an idea of the amount of yielding of the mass above and below the bed. Such a measurement, however, would not...
Page 73 - Beside this we soon halted : it was spanned at one place by a bridge of snow, which was of too light a structure to permit of Simond's testing it alone; we therefore paused while our guide uncoiled a rope and tied us all together. The moment was to me a peculiarly solemn one. Our little party seemed so lonely and so small amid the silence and the vastness of the surrounding scene. We were about to try our strength under unknown conditions, and as the various possibilities of the enterprise crowded...