1863.] 359 



Zoneless polar edge : 



(55)^25=1. 



Zonal edges i 



(55)* 25=1, Z = {2, 3, 0, O 2 }; 



(44),45=l, (55)*o25=l, Z = {4, 3, O 2 , 0}. 



Epizonal edges : 



(56)<pl5=l, (36)*35=1, (45M5 = l, Z={2, 3, 0, O 2 } ; 

 (46)^25=1, Z = {..,3,0 3 } ; 



(34)^55 = 1, Z = {2, 5, 0, O 2 }. 



Asymmetric edges : 



(56)15=i, (46)o25=2, (36)*35 = 2; 

 (45)*35 = 3, (35)a,45 = 2, (34)*55 = i . 



Registration of the "LQ-edra 7-acra. 



Table A. 

 1 . One 5-zoned monarchaxine, viz. the double pentagonal pyramid. 



2. Two 3-zoned monaxine heteroids, one with polar hexace and 

 triangle, the other with polar triace and triangle. The zones are read 

 in order in Table C. 



3. One 2-zoned monaxine heteroid, whose gonogrammic axis carries 

 a polar tessarace, with the zones 



Z={l p +2.1, .., Q p , O 2 - 1 }, Z'^1, + 2.2, 2.1, O p , O 22 }. 



4. One 2-ple zoneless monaxine heteroid, whose gonogrammic 

 axis carries a hexace. 



Table C. 

 Zoned polar faces : 



(5)3^9 = 1, Z = {! 1 , + 2, l p + l, O 2 , 0}; 



(4 )3 3m 49 = l, Z={lj, + 2, l p +3, 0, O 2 }. 

 Zoned non-polar faces : 



3 W0 49=3, Z={3, 4, 0, O 2 }; 



3 W0 49=2, Z={3, 2, 2 ,0}; 



3 m 49=i, Z={5, 2, 4 ,0}. 



Asymmetric faces : 



2 D2 



