[Gutenberg 61795] • From an Easy Chair

Excerpt from Science From an Easy Chair a Second Series

Snow squeezed to Ice - Regelation - Movement of Glaciers - Vast Size of Ancient Glaciers - Distinct Glacial Periods - Causes of Glacial Periods - Date of Last Glacial Extension - The Flow of Glaciers - The Colour of Ice - Ice Scratching and Ice Polishing Excavation by Glaciers.

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