1879.J -^' [Chase. 



II. Spectral Estimates of Sun's Distance. 



I have further shown : 



8. That the harmonic undulations of our atmosphere are such as to fur- 

 nish a simple method of estimating Sun's distance, by means of barometric 

 fluctuations.* 



9. That approximate estimates of Sun's distance, may also be made from 

 the harmonic disturbances of magnetism,! (chemical energy, light, sound, 

 gt, gt' 2 , simultaneous attraction of Sun, Earth and other planets upon elas- 

 tic fluids),:]: lunar distance and orbital time.g 



10. That there are evidences of paraboloidal nucleation, connecting the 

 Sun, each of the planets, the asteroidal belt, and the star Alpha Centauri. || 



11. That planetary rotation is merely retarded orbital revolution, through 

 the collision of particles near paraboloidal or ellipsoidal foci.^f 



12. That gt, when t is the time of cosmical or molecular semi-rotation, 

 represents the limiting velocity between complete dissociation and incipi- 

 ent aggregation.** 



13. That gt, for the principal planets in the supra-asteroidal and in the 

 infra -asteroidal belt (Jupiter and Earth), is determinedff by Sun's orbital 



influence (/ gr); while gt, for the Sun, is the velocity of light. 



14. That Jupiter is at the centre of the Neptuno-Uranian nebula ; Earth 

 is at the centre of the belt of greatest density ; Sun is at the nucleal centre 

 of the entire system. \% 



15. That the frequency of oscillations in the violet rays, and the super- 

 ficial gravitating energy of the Sun, are indicative of reciprocal action and 

 reaction. §§ 



16. That successful predictions may be made from simple considerations 

 of the principles which are involved in harmonic undulation. |||| 



All of these laws were found by means of the hypothesis that the undu- 

 lations of an aethereal medium, when intercepted by inert bodies, tend to 

 produce harmonic undulations (Law 4). 



The discovery of the foregoing " basic " harmonj r , therefore, led me to 

 look with confident expectation for such evidences of undulatory collis- 

 ion, between solar and terrestrial waves, as would furnish satisfactory 

 grounds for new estimates of the Sun's mass and distance. 



Beginning with the most far-reaching of all the indications (Law 10), and 

 taking Earth's half radius as the unit and focal abscissa of a primitive 



*Ante, ix, 287; 1863. 



fib., ix, 35(3, 367, 427, 487 ; 1864. 



Jib., xi, 103; 1869: xii, 392; 1872: xiii, 142; 1873. 



§ xiii, 398-400; 1872. 



|| lb., xii, 519; 1872. 



fib. xii, 406; 1872: xiv, 112; 1874. 



** lb. xiv, 111; 1S74: xvi, 298, 496; 1876-7. 



tflb. xii, 406; 1872. 



KIb. xvi, 497; 1877. 



gglb. xiii, 149; 1873, 



llll lb. ix, 288; 1863: xiii, 238; 1873: xviii,34; 1873- 



