Abstract :
H. Voelcker, author of the above-named paper which appeared on pp. 22-30 of the February, 1966, issue of this Transactions, has requested that the following corrections be made: The left-hand side of (14), which is missing in the published version, should be Susb(f). Readers should note that the singular points |f| = F0 are omitted in (14), mainly to avoid mathematical clutter. Equation (17) should read |S0(f)| = |S(f)|, η = 0.