58 SOUTHWARD MOTION OF THE EAETH. 



CHAPTER IX. 



197. That motion of the earth in the direction of 

 the south pole, which appears to be demonstrated by 

 the phenomena just mentioned, we have, in the course 

 of our arguments, treated as if resulting from the 

 motion of the solar system. For we have remarked, 

 in sections 144 and 145, that the effects of motion as 

 shown by tides, currents, and winds, will be the same 

 whether those effects result simply from a motion of 

 the solar system in the direction of the south pole, or 

 be the average result of a motion of the solar system 

 in the direction of the north pole combined with a 

 motion of a more extensive system, with a greater 

 velocity in the opposite direction. 



That is to say, as far as the arguments which we 

 have hitherto adduced are concerned, those effects 

 might either result from a motion of the solar system 

 by which the earth is moved together with that 

 system; sweeping along among the stars which 

 compose the visible part of the universe, and so 

 changing its position among those stars; or, they 

 might be the result of a motion of the whole stellar 

 system, in which the earth, the sun, and the stars, 



