1863.] 375 



Zonal non-polar edges : 



(33M9=io, z={4, 3, O 2 , 0} ; 



(33)* 49=6, Z={4, 3, O 3 , 02} ; 



(33)*49 = 2, Z={2, 3, 0, 02}; 



(33)^49=8, Z={4, 1, O 3 }; 



(33M9=2, Z={6, L O 5 }. 



Epizonal edges : 



(33)^,49=4, Z={4, 3, O 2 , 0}; 



(34)^39=4, Z={4, 3, O 3 , 02}; 



(34)^39=5, Z={2, 3, 0, O 2 }; 



(33)^49=1, Z={2, 3, 0}; 



(34)<p39=3, (33) ej ,49=l, Z={2, 5, O 3 }. 



Asymmetric edges : 



(34)^39=108, (33)a,49=352. 



Registration of&-edra 12-acra. 



Table A. 



1 . One zoned tetrarchaxine, having for principal poles hexagons 

 and triangles, with amphigrammic secondary axes. The zone is 



2. One 3 -zoned homozone monarchaxine, with zoned polar trian- 

 gles, and zoneless amphigrammic axes. The signatures are read in 

 Table B below. 



3. One homozone triaxine, with zoned and zoneless axes all am- 

 phigrammic, and signatures next read in Table B. 



4. One 6-zoned heterozone monarchaxine, with principal polar 

 hexagons, and secondary axes amphiedral and amphigrammic. The 

 zones are first read in Table B below. 



5. Three 2-zoned monaxine heteroids, one having polar hexagon 

 and tetragon, with zones 



Z={2.2, 2,+2.1, OH Q2.1}, 



Z'={2.2, 2 p , O 2 - 1 }, 



and the others having amphigrammic axes, with the zones 



Z={.., 2.2, O 2 , 2 -i}, Z'={2.2, 2.2, 0|, 02-1}; and 



Z={2.1, 2.3, O p , O p , 02-1}, Z'={2.1, 2.1, O p , Q p }. 



6. One zoneless 2-ple monaxine heteroid, with amphigrammic axis. 



2E 2 



