De harmonica institutione

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Two chicks near an egg with a white background (poultry, chick, chickens, birds).

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Currency. Money. Cash. Dollars. Bills. Pile of ten, twenty, fifty, and hundred dollar bills.

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Lusitania sinking, illustration from The War of the Nations (New York), December 31, 1919. World War I, WWI. This image is one of three on the page. (See source file for the other two.)

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Battle of the Alamo from "Texas: An Epitome of Texas History from the Filibustering and Revolutionary Eras to the Independence of the Republic, 1897. Texas Revolution, Texas revolt, Texas independence, Texas history.

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Illustration for Demystified "How Dangerous is Quicksand"

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King Cobra snake in Malaysia. (reptile)

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pg 229Nazi parade features a banner proclaiming, "Death to Marxism."The possibility of a peaceful Germany after World War I was precluded entirely by the terms of the Versailles Treaty and theintransigent hostility of France and England. Stripped of indu

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De harmonica institutione

work by Hucbald

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His treatise De harmonica institutione describes the gamut (the series of recognized musical notes) and the eight modes. He also wrote poems, metrical prayers, and hymns.
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