In their paper [2,3], Cameron and Storvick introduced some classes $S"+m$ and of functionals on classical Wiener spaces $C_0[a,b]$. For such functionals, they showed that the analytic Feynman integral exists and they gave some formulas for this integral. Moreover they obtained that the functionals of the form $$ (1.1) F(x) = exp {int^b_a{ heta(s,x(x))dx} $$ are in S" where they assumbed that the potential $delta : [a,b] imes R o C$ satisfies (i) for each $s in [a,b], heta(s,cdot)$ is the Fourier-Stieltjes transform of $sigma_s in M(R)$, (ii) for each Borel subset E of $[a,b] imes R, sigma_s (E^{(s)})$ is a Borel measurable function of s on [a,b], and (iii) the total variation $Vert sigma_s Vert$ of $sigma_s$ is bounded as a function of s.tion of s.