TABLE OF CONTENTS, 



PART I. 



CHAPTER I. 



Page. 



Rotundity of the Earth Apparent motion of the Sun An- 

 gles Measurement of a Degree, - 13 



CHAPTER II. 



Apparent motions of the Planets Ptolemaic -System 

 Measurement of Angles Diurnal revolution of the Earth 

 Copernican System Phases of Venus Religion and 



Philosophy, 25 



CHAPTER III. 



Parallax-2-Measurement of Distances Distance of the 

 Moon, how determined Distance of the Sun Immensi- 

 ty of Creation, -------- 39 



CHAPTER IV. 



Time Dials and Clepsydra Siderial Day Transit Instru- 

 ment Geology and Astronomy, - 45 



CHAPTER V. 



The Calendar Length of the YearThe Ecliptic Preces- 

 sion of the Equinoxes Julian Calendar Gregorian Cal- 

 endar, .......53 



CHAPTER VI. 



Right Ascension and Declination Sun Dials Dialing Di- 

 als and Clocks, - - - 67 



CHAPTER VII. 



Measurement of Time Equation of Time Longitude 

 Quadrant Method of determining apparent Time, - - 77 





