This paper considers the analytical solution to the problem of low-frequency induction by an applied axial uniform magnetic field, in an equatorially stratified sphere having the conductivity distribution &sgr;(&phgr;)=&sgr;0e-&lgr; cos(p&phgr;), where p∈{1,2} is a periodicity factor, &lgr;>0 is a conductivity contrast parameter, &sgr;0 is a conductivity scale factor, and &phgr; is the equatorial angle. The resulting induced electric and current density fields are fully three-dimensional. While of interest in its own right, the model should prove useful in the validation of low-frequency electromagnetic computer modeling codes. The development includes a full discussion of the underlying Green's function, which can also be used for modeling induction by alternative excitation fields.¿ 1997 American Geophysical Union