Saturation magnetization near T_c shows that in the mean field approximation the saturation magnetization just below the Curie temperature has the dominant temperature dependence (T_c – T)^1/2. Assume the spin is ½.  The result is the same as those for a second-order transition in a Ferro electric crystal the experimental data for Ferro magnets (Table 1) suggest that the exponent is closer to 0.33.