The Forms of Water in Clouds and Rivers, Ice and GlaciersTyndall, John
Science
The Forms of Water in Clouds and Rivers, Ice and Glaciers
Tyndall, John
Clouds; Glaciers; Ice; Rivers; Water
Changes of volume resulting from heat and cold, 118-122;
illustrations of, 119, 120;
consequences from, 122;
opinions of Count Rumford, 12, 124.
Chapeau, refreshment at, 41.
Cleavage and glacier lamination, 187;
analogy between, 188, 189;
planes of, 188;
observations of Prof. Sedgwick, 188;
discovery by Daniel Sharp, 188;
additional evidence of Mr. Sorby, 189;
association of pressure and cleavage established, 189:
relation of cause and effect, 189;
artificial conditions of Nature combined, 189, 190.
Clouds, their formation, 3-6;
in tropical regions, 25;
illustration of the formation of, 26.
Col du Géant, snows and ice-cascade of the, 46, 47;
snow-fall on the plateau of, 48, 49;
cracks on, 179.
Conclusion, 191, 192.
Condensers needed, 154.
Conditions necessary for the production of natural phenomena, 99.
Conscience, scientific, 180.
Crevasses, 41;
work among the, 52;
widening of, 54;
drifting of bodies buried in, 57;
birth of, 98;
features of, 100;
characteristic, 102;
transverse, 103;
stalactites of Alpine, 100;
marginal, 105-107;
longitudinal, 109;
curvature of glacier related to number of, 110-112.
Crystallization of metals, 29;
of sugar, 30;
of saltpetre, 30;
of alum, 30;
of chalk, 30;
of carbon, 30;
reversal of the process of, 36.
D
De Saussure's theory of glacier-motion, 156.
Dilatation theory, 155, 156.
Dirt-bands of Mer de Glace, observed by Prof. Forbes, 130;
description and explanation of, 131, 132.
Distillation, oceanic, 18; ordinary, 21.
Dôme du Goûté, broken crags of, 50.
Drifting of huts on ice, 59, 60.
Dr. William Hopkins's conclusions regarding the obliquity of the
lateral crevasses, 107.
E
Égralets, passage through the, 53.
Electric light, dark waves of, 14.
Equivalent points, comparison of velocities of, 75, 76, 107.
Erratic blocks, 147-150.
Evaporation, caused by the heat-rays of the sun, 13.
Expansion of water, 121, 155.
Experiments to show the heat-power of the dark rays, 14-19;
illustrative, 22, 23, 25, 20;
Dr. Franklin's experiment, 112.
Extract from Bordier's book, 157, 162.
F
Faraday's theory regarding regelation, 171;
special solidifying power exerted by substances upon their own
molecules, 172, 173;
opinion of Prof. James Thomson, 174, 175;
experiments illustrating the subject, 174;
quotation from Faraday, 175.
Fog, its formation in ball-rooms, 5.
Forces, of crystallization, 30;
of gravitation, 30;
of Nature, 31;
attractive and repulsive, 127.
Freezing mixture, 120, 168.
G
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