The Rayleigh polynomial 2(v) has been defined [2], [3] in the following manher" Let J.(z) be the Bessel function of the first kind, and let j., m= 1, 2,..., be the zeros of z-J(z), IRe ( )l -< IRe (J,.+l)l, then 0)) 2 (,, " 2 ,.) n=l, and [x] is the greatest integer _< x. The symmetric function z,.(v) is called [1] the Rayleigh function of order 2n, and has been the subject of a number of investigations by Cayley, Watson, Forsyth and others [4; 502]. It is obvious from (1) that any structure of =() is closely related with that of 6(). However, no simple structure of the Rayleigh polynomial ,(v) is known so far. It has been shown [2] that 2.(v) is a polynomial with positive integral coefficients, that its degree is 1 2n