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chapter:
INTRODUCTION
CHAPTER I: THE ZODIAC AND THE PLANETS
CHAPTER II: THE PHASES OF THE MOON
CHAPTER III: THE COURSE OF THE SUN THROUGH THE TWELVE SIGNS
CHAPTER IV: THE NORTHERN CONSTELLATIONS
CHAPTER V: THE SOUTHERN CONSTELLATIONS
CHAPTER VI: ASTROLOGY AND WEATHER PROGNOSTICS
CHAPTER VII: THE ANALEMMA AND ITS APPLICATIONS
CHAPTER VIII: SUNDIALS AND WATER CLOCKS
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Table of Contents:
BOOK I
BOOK II
BOOK III
BOOK IV
BOOK V
BOOK VI
BOOK VII
BOOK IX
1. THE sun, after entering the sign Aries and passing through one eighth of it, determines the vernal equinox. On reaching the tail of Taurus and the constellation of the Pleiades, from which the front half of Taurus projects, he advances into a space greater than half the firmament, moving toward the north. From Taurus he enters Gemini at the time of the rising of the Pleiades, and, getting higher above the earth, he increases the length of the days. Next, coming from Gemini into Cancer, which occupies the shortest space in heaven, and after traversing one eighth of it, he determines the summer solstice. Continuing on, he reaches the head and breast of Leo, portions which are reckoned as belonging to Cancer.
Vitruvius: The Ten Books on Architecture. Vitruvius. Morris Hicky Morgan. Cambridge: Harvard University Press. London: Humphrey Milford. Oxford University Press. 1914.
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