Chapter 1 The Earth

When you study a body, whatever shape it might have, with a scrutinizing mind and eye, you will easily and quickly notice that three features can be observed, namely first its visual outer shape, i.e. its form with all its natural attributes, for example its circumference, its surface extending to all sides and the coloring of this surface; secondly, you will essentially perceive a certain volume that has some diameter in its length, width, and height; and this volume of the body shows, according to its nature, some weight or gravity notably toward a certain direction. – The Earth, Chapter 1, Paragraph 1

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