Abstract :
In the above paper, the designation of the columns "Slot Lengths (mm)" of Tables I-IV should have read "Half Slot Lengths (mm)," as is indicated correctly in Fig. 1 of the paper, by z = l1, z = 2l1, respectively, for the first slot. S1, S2,· · ·, in the figure of Table I, therefore, should have read 2S1, 2S2,· · ·, as shown above.