Chase.] -^"^ [April 21, 



4 = 334, 280, 400, 000, 000, 000 J„ 

 which exceeds the estimate of Note 35 by less than | of one per cent. 



238. notation Estimate of JEthereal Density. 



The hypothesis tliat hydrogen is the simplest known form of sethereal 

 condensation and that all other chemical elements are condensed hydrogen, 

 together Avith the theory that stellar rotation is due to ajthereal harmonic 

 oscillations (Notes 17, 34, IdS et al), requires that the linear oscillations of 

 the kinetic gaseous theory should be made circular, within the stellar 

 nucleus. Since gaseous density varies inversely as volume, the aether- 

 hydrogen hypothesis is satisfied by the proportion 



r: L„« :rj' :: 4 : d, 



4 = 335, 961, 800, 000, 000, 000 ^ 

 which is ^ of one per cent, greater than the estimate of the foregoing 

 note. 



239. JEthereal Elasticity. 



The velocity of light (« ), according to the subsidence estimate, is 

 92,785,700 -=- 497.827 = 186,381 miles. The velocity of sound in hydrogen, 

 according to Dulong, is 4163 ft. If we designate the ratio of elasticity to 

 density {e -— d), for hydrogen and sether respectively, by e^ and £„, the 

 proportionality « oc i/e gives 



£„ : £^ : : (186381 X 5280)-^ : 4163^ : : 55,880,460,000 : 1 

 for the relative elasticities under the same density. If we adopt the rota- 

 tion estimate of comparative density, we have 



<;„ :<?^ : :1 :6,012,151 

 for the relative elasticities at normal density. 



240. uEthereal Density at Mean Planetary Loci. 



The sethereal density should be ^ as great as at Sun's surface at § L„ =: 

 316,438 r„ = 1448.343* ft^. At any other locus, p^, it should be (^)»,n being 

 equivalent to (^^ h- 1448.343 p^). This gives, for the relative rotation 

 estimate of sethereal density at Sun's surface and at the several planetary 

 mean distances : 



Allowing for rupturing centre ot gravity of Sun and .Jupiter. 



