1091 



symmetrj. Prom our considerations it also follows, that Ejc' has 

 the same value in every arbitrary system of coordinates in which 

 the field is stationary and possesses spherical symmetiy in the in- 

 finite. The mass m is thus a scalar. 



In a following article the gravitation field for an electrically 

 charged centre will be calculated by application of the result found 

 in this paper for a field with spherical symmetry. 



Further it will be proved, that the density of energy of the gravi- 

 tation field f/ outside the body is everywhere zero, when the system 

 of coordinates is thus chosen that V^ — g = 1 (or constant). 



