﻿vom 29. April 1878. 



313 



If for the calculation of T we compare the terms containing § we 

 have 



Tw = 



w , -% , y 



W , lü , z , -x 



w , -y , x , 



/l , #1 , ^1 , «1 j &1 ? <ä 



/3 5 #3 , 4 , «3 , #3 , C Z 



where observe that writing w = 0, the right-hand side vanishes 

 | as containing the factor 



y 



z , -z 



-y, x 



hence the right hand side divides by w; and one of its terms 



being evidently w d (abc), T contains as it should do the term 

 (abc)w 2 : the remaining terms can be found without any difficulty, 

 and the foregoing expression for T is thus verified. 



