The pamphlet surveys the Dutch Neo-Malthusian movement, recounting its origins, institutional work, and practical programs to prevent conception rather than induce abortion. It describes clinics and a corps of district nurses who teach sexual hygiene, fit and instruct women in the use and care of pessaries, and distribute devices to poor families, while discussing alternative methods and husband involvement. The account explains training practices, emphasizes education for less-educated women, outlines the League’s outreach and printed materials, and summarizes social responses, medical debates, legal restrictions, and the observable effects of these family-limitation efforts.