В. Die Elsafs-Lothringische Dreieckskette и. s. w. i8i
[49 ] = — XVI -f- XVII
M = + XVI
[ 5 1] = -XIX
[52] = — XVIII+ XIX
[53] = - XVII
f 54] = + XVII — XVIII
[ 55 ] = +XVIII
[56] = — XVIII
[57] = +XVIII —XIX
[58] = + XIX — XX
[59] = + XX
[60] = — XX + XXI
[61] == — XIX + XX
[62] = + XIX
[63] = — XXI
[64] = — XX
[65I = + XX — XXI
[66] = + XXI
[67] = — XXI
[68] = + XXI