• Page 483, left column, 19 lines from the top, “Fig. 1 (left)” should be replaced by “Fig. 5 (left)”.

  • Page 483, left column, 21 lines from the top, “see Fig. 2” should be replaced by “see Fig. 12 (left)”.

  • Page 483, left column, 33 lines from the top, “Figures 3 and 4” should be replaced by “Figures 1 and 2”.