1863.] 347 



<* 

 Asymmetric faces : 



4o*35=l, 345=1. 



Table D. 

 Zoned ^olar edge : 



(44)^14=1, Z={i p +2.i, 2.1, O p }, 



_ , , Z'HV 2.2, 0,,0*.'}. 



Zonal edges : 



(33)34=l 



Epizonal edges : 



(35V4=l, Z={3, 2, 0, O 2 }; 



(34)^24=1, Z={l, 4, 03}. 



Asymmetric edges : 



(53)*14=1, (34)o,24=3 ; 



l, (44)*14=1. 



Registration of^-edra 7-acra. 



Table A. 



1 . One 6-zoned monaxine heteroid, having its gonoedral axis ter- 

 minated by a hexace and a hexagon, and the zones first below written 

 in Table C. 



2. Two 3-zoned monaxine heteroids, with gonoedral axes, having 

 one the zone Z={l p -f 2, l p +2> 0, 0}, and the other the zone 

 Z= {lp-j-2, l p + 2, O 2 , O 2 }. Each axis is terminated by a triace arid 

 a triangle. 



3. One 2-ple zoneless monaxine heteroid, with gonoedral axis, ter- 

 minated by a 4-ace and a 4-gon. 



4. Two monozones, having one the zone Z={1, 3> O 2 }, and the 

 other Z= {3, 1, O 2 }. 



5. Two asymmetric 7-edra 7-acra. 



Table C. 

 Polar coned faces : 



O 2 }; 



, 02, 0'} 



,o, 0}. 



