42 



BELL SYSTEM TECHNICAL JOURNAL 



Triclinic (36 consts) 



Gil Gi2 Gl3 Gi4 Gi6 Gi6 



G21 G22 G23 G24 G25 G26 

 G31 G32 G33 G34 G35 G36 

 G41 G42 G43 G44 G45 G46 

 G51 G62 G53 G54 Gsth Gee 

 Gei G62 Ges G64 Ges Geej 



Orthorhombic (12 consts) 



Gil G12 Gi3 ■ 

 G21 G22 G23 

 G31 G32 G33 

 G44 

 G56 

 ^0 Ge 



Tetragonal Classes 11, 

 12, 14, 15) (7 consts) 



Gil G12 Gi3 



G12 Gil Gi3 



G31 G31 G33 



G44 



G44 







(13.4) 



(13.6) 



Monoclinic (20 consts) 

 Gil G12 Gi3 Gi3 

 G21 G22 G23 G26 

 G31 G32 G33 G36 

 G44 G45 

 G54 G55 

 Gei Ges G63 Gee^ 



Tetragonal Classes 9, 10, 13) 

 (10 consts) 

 Gil G12 Gi3 G16 

 G12 Gu Gi3 — G16 

 G31 G31 G33 

 G44 G45 

 -G45 G44 

 Gei-Gei Gee 



(13.5) 



(13.7) 



(13.8) 



Gil 



G12 



G31 



G41 — 











Trigonal (Classes 16, 17) 



(10 consts) 

 Gu G12G13 Gi4 — G25 

 G12 Gil Gi3 — Gi4 G25 

 G31 G31G33 

 G41 — 6'4i G44 G452G62 

 •G52 G52 — G45 G442G41 

 66 j ^000 2G25 2Gi42(Gii-G22)^ 



Trigonal (Classes 18, 20, 21) 

 (8 constants) 



G12 Gi3 Gi4 



Gil Gi3 -Gi4 



G31 G33 



G41 G44 



G44 2G41 



2Gi4 2 (Gil -Gia)^ 



(13.9) 



(13.10) 



Trigonal (Classes 19, 22) 

 (6 constants) 

 Also Hexagonal (Classes 23, 24, 25, 26, 27) 

 Gil G12 Gi3 

 G12 Gu Gi3 

 G31 G31 G33 

 G44 

 G44 

 2(Gu - Gia)^ 



(13.11) 



