Book 3
The Natural Faculties
Chapter 14
Pneuma and Vapor →

Chapter 15
Pneuma and Vapor →

Chapter 12
The 4 Faculties Four in each Organ →

Chapter 8
The Natural Faculties →

Chapter 13
The Natural Faculties →

Chapter 9
The Spleen →

Chapter 4
Digestion →

Chapter 6
The Natural Faculties →

Chapters 1-3
The Retentive Faculty →