British Library MS. Harley 6481. Paper. Quarto. 17th Century. Dr Rudd's Treatise of the miraculous Descensions and Ascensions of Spirits, verified by a practical examination of principles in the great World - The second Part professes to contain some choice Rosycrucian Chemical Medicines, wholsome and fit to keep the Body in health and lustiness, until the appointed time of Death, that is when the Soul separates from it: And then after teaches the harmony & composition of the human Soul; and then conducts it to the place from whence it came.