These source materials appeared between 1800 and 1900 CE.
Vital Force, Magnetic Exchange and Magnetation by Albert Chavannes (1897)
Magnetation and Its Relation To Health and Character by Albert Chavannes (1898)
The Kreutzer Sonata by Leo Tolstoy (1889)
The Perfumed Garden by Cheikh Nefzaoui (trans. 1886)
The Better Way by A.E. Newton (1875)
Male Continence by John Humphrey Noyes (1872)