XT 



2. Thales was the first who predicted eclipses, and 



made various discoveries . ib. 



3, Pythagoras was the first who gave fundamental pre- 



cepts respecting music . .114 



4. Plato first introduced the geometric analysis ... ib 



5, <J. Plain and spherical trigonometry, as well as 



algebra, owe their origin to Hipparchus . 115 llS 

 7' Method of measuring the distance of the SUB from 



the earth . 117 



f. The ancients calculated tables of the motion of the 



sun and moon, and made catalogues of the fixed 



stars . . fr. 



CHAP. XX. 



Of Archimedes ; of ike Mechanics and Architecture 

 of the Ancients; and of Microscopes. Of Sculp- 

 ture, Painting, and the Origin of Music. 



4 



1, 2, 3. Brief recital of the amazing mechanical dis- 

 coveries of Archimedes , 1 1 91 20 



4. The mechanical powers used by the ancients are 



beyond conception . . 121 



5. Of the pyramids of Egypt, and ruins of Palmyra and 



Balbec . . 122 



6. Of the immense magnitude and grandeur of Babylon ib. 



7. .Other cities of amazing extent . ib* 

 VOL, V, fc 



