Superphysics
The Principles of the Earth
The principles of phenomena on Earth according to Descartes
Articles 48-49
The Nature of Water →
Articles 50-56
The Tides and the Moon →
Articles 57-63
The Nature of the Earth's interior →
Articles 64-71
The Origin of Springs →
Articles 72-79
The Origin of Metals →
Article 80-86
The Nature of Fire →
Article 87-91
Fire Produced from Objects →
Article 92
Fire from Dried Leaves →
Article 95
How a Candle Burns →
Article 102-108
Why Some Things Burn and Others Do Not →
Articles 109-119
Gunpowder made of sulfur, saltpeter, and charcoal →
Articles 116-119
Lamps that burn for a long time →
