History of Wicca the Gospel of the Witches" by Charles Godfrey Leland and the practices of ceremonial magic. The original material in the rituals brought to light by Gardner is not cohesive, and mostly takes the form of substitutions or expansions within unoriginal material. Roger Dearnaley, in "An Annotated Chronology and Bibliography of the Early Gardnerian Craft", describes it as a "patchwork". One element that is apparently distinctive is the use of ritual scourging and binding as a method of attaining an ecstatic trance for magical working. Hutton argues strongly that this practice in Wicca does not reflect sado-masochistic sexuality (he refers in
Wicca oral teachings passed along to their initiates. There are many variations on the core structure, and the religion grows and evolves over time. It is divided into a number of diverse lineages, sects and denominations, referred to as "traditions", each with its own organisational structure and level of centralisation. Due to its decentralized nature, there is some disagreement over what actually constitutes Wicca. Some traditions, collectively referred to as British Traditional Wicca, strictly follow the initiatory lineage of Gardner and consider the term "Wicca" to apply only to similar traditions, but not to newer, eclectic traditions. Wicca is typically duotheistic,