P. E. Chase—Method of Estimating the Sun’s Mass. 298 
heating energy of Hydrogen, the reasonably accordant ones of 
Andrews, Dulong, Favre and Silbermann, Grassi, and Hess. 
According to the mean of their several results, one ‘ipod of 
H, burned with eight pounds of O, liberates enough heat to 
34533 X 772 feet. 
If such a lift were accomplished, it would establish an oscilla- 
tion, which would be perpetually sustained by terrestrial attrac- 
tion and elastic rebound, if not counteracted by opposing 
forces. 
lift the nine pounds of gaseous H,O i vacuo, 
Let h= mean height of oscillating vapor (3X ee a feet).* 
m= mass of sun, in units of the earth’s ma 
d= mean distance of sun in units of sarttts equatorial 
radius =mean height of sagtiwiane earth. 
Yo= 3654 5b 48m 49s, 
y,= time of ee revolution at earth’s equatorial sur- 
face = 27_|—. 
r= earth’s equatorial radius (20,923,654 feet=mean of 
Airy and Bessel.) 
g= 32°08744. 
According to my hypothesis 
[Ae | BOs on | Bas BRE Bio 
h 
We have also, according to well known mechanical laws, 
m= (¥1\3 xq", Solving the equations, we obtain the follow- 
ng values (C), which I collate with the careful astronomical 
estimates of. eweomb (N), and Stone (S). 
S. 
C 
Mass af the sun, 330,260 26, 329, 
Distance “ « 92,639,500 m. 92,389,000 m. 91,945,000 m. 
If an elastic fluid is lifted above the earth’s surface, subject 
to the (nearly) constant pressure of gravity ; : 
The superficial pressure oc (“)’. 
And the volume « a (*) z 
Therefore, under equal increments of heat, 
vol. under const. press. : const. vol. X (r-+h)*: 
In the case of H,O, from the values already die’ we 
obtain (“)" =1-488, This corresponds, approximately, to 
* My theoretical mean specific heat of H,O being $. 
