Zoological Philosophy

Insects

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Chapter 6j

Worms (11th Rank)

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Chapter 6h

Radiates (12th Rank)

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Chapter 6l

Polyps

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Chapter 6m

Modifications in Plants

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Chapter 7b

Infusorians

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Chapter 6n

The Laws of Evolution of Lamarck

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Chapter 7c

The Influence of Circumstances

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Chapter 7

Favourable times and circumstances

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Chapter 7d

Disappearing Ears and Legs

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Chapter 7e

The Laws of Evolution of Lamarck

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Chapter 7f

The Sloth

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Chapter 7e

Personal Conclusion

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Chapter 7f

The Natural Order of animals

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Chapter 8

Class 1: Infusorians

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Chapter 8c

Class 2: Polyps

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Chapter 8c

Class 4: Worms

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Chapter 8c

The 6 Stages

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Chapter 8b

Class 3: Radiates

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Chapter 8e

Class 5: Insects

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Chapter 8d

Arachnids (6th Class)

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Chapter 8e

Annelids

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Chapter 8f

Vertebrates

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Chapter 8g

Sternoptyges

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Chapter 8h