The potential for extensive fertility control in Nashville among indigent white patients selected for high fertility and interest in family limitation was demonstrated in an investigation. However, despite a ready willingness to try the suggested methods, neither diaphragm and jelly nor foam powder and sponge were sufficiently suitable to prevent patients from rapidly dropping out of the program. A comparison of the 2 methods shows that both are similar in their contraceptive skill and interest. However, foam powder was prescribed to patients for whom the diaphragm was unsuitable. Diaphragm and jelly was more acceptable to patients than was foam powder. The protective services offered by diaphragm and jelly (88%) exceeded those obtained from foam powder (63%) by a wide margin. Analysis of factors influencing chance of conception with in each group suggests that the difference lies in the method rather than in the patient.