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The Formation of Vegetable Mould, Through the Action of Worms, with Observations on Their Habits

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The Formation of Vegetable Mould Through the Action of Worms, with Observations on Their Habits - Darwin, Charles, Professor

Excerpt: ...and dry periods near Nice, within the previous five or six months; they weighed 9.5 oz., or 5 lb. 5.5 oz. per square yard. After an interval of four months, Dr. King collected all the castings subsequently ejected on the same square foot of surface, and they weighed 2.5 oz., or 1 lb. 6.5 oz. per square yard. Therefore within about ten ... Read More

The Formation of Vegetable Mould Through the Action of Worms: With Observations of Their Habits 2013, Createspace

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The Formation of Vegetable Mould Through the Action of Worms, with Observations on Their Habits 2013, Tredition Classics

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The Formation of Vegetable Mould: Through the Action of Worms, with Observations on Their Habits - Primary Source Edition 2013, Nabu Press

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The Formation of Vegetable Mould, Through the Action of Worms: With Observations on Their Habits - Primary Source Edition 2013, Nabu Press

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The Formation of Vegetable Mould, Through the Action of Worms, with Observations on Their Habits... 2012, Nabu Press, Charleston SC

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The Formation of Vegetable Mould, Through the Action of Worms, with Observations on Their Habits... 2012, Nabu Press, Charleston SC

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The Formation of Vegetable Mould Through the Action of Worms; With Observations of Their Habits 2012, Rarebooksclub.com, Miami FL

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The Formation of Vegetable Mould Through the Action of Worms, with Observations on Their Habits 2012, Rarebooksclub.com, Miami FL

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The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their Habits... 2012, Nabu Press, Charleston SC

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The Formation of Vegetable Mould, Through the Action of Worms; With Observations on Their Habits 2012, Rarebooksclub.com, Miami FL

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The Formation of Vegetable Mould; Through the Action of Worms, with Observations on Their Habits 2012, Rarebooksclub.com, Miami FL

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The Formation of Vegetable Mould, Through the Action of Worms, with Observations on Their Habits ... with Illustrations. 2011, British Library, Historical Print Editions

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The Formation of Vegetable Mould: Through the Action of Worms, with Observations on Their Habits 2011, Nabu Press, Charleston SC

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The Formation of Vegetable Mould: Through the Action of Worms, with Observations on Their Habits 2011, Nabu Press, Charleston SC

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The Formation of Vegetable Mould, Through the Action of Worms, with Observations on Their Habits 2011, Nabu Press, Charleston SC

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The Formation of Vegetable Mould Through the Action of Worms with Observations of Their Habits 2010, Kessinger Publishing

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The Formation of Vegetable Mould Through the Action of Worms with Observations of Their Habits 2010, Kessinger Publishing

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The Formation of Vegetable Mould Through the Action of Worms with Observations of Their Habits 2010, Book Jungle

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The Formation of Vegetable Mould, Through the Action of Worms, with Observations on Their Habits 2010, Nabu Press

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