DERIVED FROM THE REGULAR POLYTOPES. 



21 



y 600 



a 



600 



3 -\-e , 1 + e 

 1 ~j-e , 8-f * 



*i Qoo [4 + 2e , 4 -J- 2, 



600 



600 



3 + e , 1 -f e 

 2 , 3 + e 



ce \ r 600 C 5 + e » 4 + 2e 



600 



600 



3 + e , l'-f-e 



1 + « ,. 1 + e 



ce \ <?600 [ 4 + 2e > 2 + 2e 



2 , 



3 -f e , ] : 2 



2 , 

 1-f e , 1-f-e 



3 -\- e , 1 + e] : 2 



96 



96 



192 



720 



151. In the same manner, the limiting bodies of C 600 being 

 tetrahedra, we find the coordinates of the vertices of ce 2 C 600 by 

 adding those of three adjacent vertices of C 600 (vertices of a same 

 face) (see art. 117 foot-note). 



Ten coordinate-symbols are obtained. x ) 



°600 

 ^600 



n 



u 600 



2 -f 2e' 

 S + e 



3 -f e 







1 -\~e , 

 1 + e . 







2 

 —2 



, Ü 



, o 



C(f 2 ^600 



[8 -f 4e 



2-f 2« , 







- ] 



O 



^600 



' y 600 

 u 600 



2 -f 2e 



3 4- « 



3 + <? , 



o 



2 







9 











, 1 + e 



Ce 2 ''600 



[8 -f 4e , 



3+e , 



2 



. 1 + e] : 



^600 



/■> 



°600 



n 



L 600 



1+* 



3 -he , 

 3-j-c , 



1 + e , 

 



1+e 



o 



■1+* 



, 1 -f e 



, o 



9 



> ** 



Ce 2 ^600 



[7 -f 3e , 



2 -f 2<? , 



4 4- 2e 



, 3 + *] : 



is 



192 



192 



') Ei.te. Diss. § 15, p. 26, the first ten symbols of Table C (multiplied by 2); § 16 

 1>. 29, Table P. 



