434 



SIHLER. 



able [Diog. L. lo, 74 (pdaprol ol x6au.oc\. Earth, sky, sea, 

 stars, sun and moon estabHshed by that association of matter, 

 creation of Hving beings out of the earth [primitive civiHzation] , 

 origin of speech, rehgion, absence of conscious purpose in the 

 movement of heavenly bodies, no teleology : celestial mechanics 

 directed by no divine providence. 



These themes are actually found in the book, although in a 

 somewhat different order. Beginning with V. 509 sqq. we begin 

 to notice that characteristic mark of Epicurus' treatment of 

 " za ^ezicofja,'' viz., the advancement of two or more theories to 

 explain phenomena so radically different from the absolute posi- 

 tivism of the atomistic physical system proper, of boks I.— IV. 

 But it may be more instructive to present at first tables showing 

 the themes and the sequence of themes in Epicurus and 

 in Lucretius. 



Epicurus to 



Pythocles. 





Lucretius V. 



Diog. Laert. 



, X. 



85 sqq. 



509- 



Motion of stars. 



Sun, moon and '' other stars " 



564- 



Size of Sun. 



Size of sun. 









Heat of Sun. 



Decline and filling of the moon. 



619. 



Sun's mutation of course 



Face in moon. 









in the year. 



Eclipses. 







650. 



Night, 



rd^t<$ izeptodou. 







656. 



Periodicity of sunrise. 



Length of night , 



and 



day. 



680. 



Correlation of day and 



Clouds. 









night iri length. 



Rain. 







705- 



moon's phases. 



Thunder. 







751- 



Eclipses. 



Lightning. 









(771-779 resume.) 



Thunderbolt. 











Waterspouts. 









Book VI. 



Earthquakes. 







96. 



Thunder. 



Winds. 







219. 



Lightning : optical phe- 



Hail. 









nomena. 



Snow. 







379- 



Lightning : destructive 



Dew. 









phenomena. 



Hoarfrost. 







451- 



Clouds. 



Ice. 







495- 



Rain. 



