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- Walt Whitman

A noiseless patient spider,

I mark'd where on a little promontory it stood isolated,

Mark'd how to explore the vacant vast surrounding,

It launch'd forth filament, filament, filament, out of itself,

...

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noun

A polynomial or function with exactly two variables.

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On the Origin of Species cover
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On the Origin of Species

by Charles Darwin

Darwin's landmark work explaining evolution by natural selection, presented here from the sixth London edition with its main chapters and glossary.

18

Chapters

200,659

Words

~15h read

Est. reading time

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Contents

1Historical Sketch of Opinion on the Origin of Species18m2Introduction8m3Chapter I: Variation under Domestication54m4Chapter II: Variation under Nature29m5Chapter III: Struggle for Existence28m6Chapter IV: Natural Selection; or the Survival of the Fittest87m7Chapter V: Laws of Variation54m8Chapter VI: Difficulties of the Theory69m9Chapter VII: Miscellaneous Objections to the Theory of Natural Selection73m10Chapter VIII: Instinct61m11Chapter IX: Hybridism57m12Chapter X: On the Imperfection of the Geological Record51m13Chapter XI: On the Geological Succession of Organic Beings50m14Chapter XII: Geographical Distribution53m15Chapter XIII: Geographical Distribution—Continued38m16Chapter XIV: Mutual Affinities of Organic Beings: Morphology: Embryology: Rudimentary Organs81m17Chapter XV: Recapitulation and Conclusion50m18Glossary of Scientific Terms21m