1. The ratio method was used for desk calculation by C. W. JONES A Short Table for the Bessel Functions Univcxsity Press Cambridge (1952). The ratio method was used for desk calculation by C. W. JONES A Short Table for the Bessel Functions Univcxsity Press Cambridge (1952).
2. The ratio method for the generation of the cylindrical functions J(x) and Y (x) is described by: J. B. RANDELS AND R. F. REEVES Cornmunications A CM l (May 1958). The ratio method for the generation of the cylindrical functions J(x) and Y (x) is described by: J. B. RANDELS AND R. F. REEVES Cornmunications A CM l (May 1958).
3. P. M. MORSE. AND H.FESHBACH Methods of Theoretical Physics MeGraw-HiU (New York) 1953 p. 1573. P. M. MORSE. AND H.FESHBACH Methods of Theoretical Physics MeGraw-HiU (New York) 1953 p. 1573.
4. M. SAFFREN Physics Department Massachusetts Institute of Technology Cambridge Mass. (private communication). M. SAFFREN Physics Department Massachusetts Institute of Technology Cambridge Mass. (private communication).