ON GRAVITATION IN GASEOUS NEBULAE. 

 Francis E. Nipher. 



In No. 3 of Vol. IX of these Transactions, appears a paper 

 by C. M. Woodward, on the distribution of pressures and 

 densities in a gaseous mass of constant temperature T^, which 

 is assumed to have a spherical form. At the surface of any 

 sphere of radius 7?^, whose center is at the center of mass, he 

 finds the density and pressure to be 



CT, 



Or. = 







■^ ~ 27rk'Bf 



(1) 







P — (2) 



The mass within the surface of radius B^ Woodward found 



to be 



3/o = ^^fo^o. (3) 



The weight of a gramme at this surface is therefore 



In these equations k is the gravitation constant, and C is 

 the constant of the gas. 



The values of these quantities at any sphere whose radius 

 is R are also 



3= ^^0 , (5) 



r>2 7^2 

 P = ^ ^» (6) 



27rkR' ^ ' 



(61) 



