As we have seen, some of the most complex remedies for lack of sexual capacity and interest are the various forms of aphrodisiac concoction. Perhaps equally complex are the rules governing collection of plant or animal ingredients. As a cure for frigidity it was often thought necessary not only to mix a complex of herbs and animal parts together - often cemented into pills by means of honey but also to perform a number of ritualistic moves over the compound. Magic was often thought to aid chemistry. In one cure for frigidity it was thought necessary to search out a particular species of red bat which rested in pairs amid the red flowers of banana trees. The bats were dried, ground into powder, and hopefully spread on a woman externally to make her feel sexy.