ERRATA 
Vol. XIX, Nos. 7 & 8. 
Page 202, line 5 from bottom and in second footnote, for K read K x . 
Page 203, line 12 from top, for it read r. 
r -nil nr i r R __W 2 —W, R _W. 2 -W 1 
Page 204, line 13 from top, for Too” Wl read ~ w +w 
Ll+L? L,+L n 
line 15 from top, for 2 read Z77~ TT7T 
-—r- Y\ 1 -r W s 
Wi 
line 7 from bottom, for ^4—— read 
Ltl L*\ "T J-<2 
2 
