Your search for "mediums" revealed the following:

Panini's Karaka System for Language Processing

Complete System of Magic by William Dawson Bellhouse (paperback)

Through A Glass Darkly by Oscar Tusk (Hardback)

The Moon and the Priestess by Paull Blakeman (paperback)

A Ring Around the Moon Witch Rites Revisited by Nigel G. Pearson (paperback)

The Silent Listener the Life and Works of J.H.W Alderman's by Wilma Tail (paperback)

The Book of the Witches by Oliver Madox Hueffer (paperback)

Of the Chalk and Flint- A Way of Norfolk Magic by Val Thomas (paperback)

Wisht Waters The Cult & Magic of Water Gemma Gary (paperback)

विशिष्टाद्वैतकोश: Visistadvaita Kosha - An Old and Rare Book (Set of Ten Volumes)

Lemegeton Clavicula Salomonis The Little Key of Solomon -paperback

The Writings of M. T. Vasudevan Nair (Mist and The Soul of Darkness, Kaalm and Kuttiedathi and Other Stories)

Bounded in a Nutshell by Val Thomas (paperback)

Runa The Wisdom of the Runes by A.D. Mercer (paperback)

Clearing the Waters by José Leitão

A History of Urdu Literature

The Life and Teachings of Sai Baba of Shirdi

Swami Chinmayananda As I know Him

Through A Glass Darkly by Oscar Tusk (paperback)

Eye of The Sun An introduction into Ancient Egyptian Magic by Kerry Wisner (paperback) (Copy)