Fern fern ("Onoclea sensibilis"). Giant water fern ("Salvinia molesta") is one of the world's worst aquatic weeds. The important fossil fuel coal consists of the remains of primitive plants, including ferns. Ferns have been studied and found to be useful in the removal of heavy metals, especially arsenic, from the soil. Other ferns with some economic significance include: The study of ferns and other pteridophytes is called pteridology. A pteridologist is a specialist in the study of pteridophytes in a broader sense that includes the more distantly related lycophytes. Pteridomania is a term for the Victorian era craze of fern collecting
Society for the Study of Theology Society for the Study of Theology The Society for the Study of Theology (SST) is the leading British organization for theologians in academy, church, and society. The Society is the leading scholarly society for the study of theology in the U.K. The Society for the Study of Theology promotes excellence in the study of Christian Theology by facilitating and shaping theological thought, conversation, and community. In particular, the Society's object is to identify and discuss important themes, questions and dialogues which call for theological engagement. The Society holds an annual conference. Its first was held in Cambridge in 1952 on