Layne, Meade: Mediums and mediumship.

1952, BSRA, San Diego, California. 
("An introduction pamphlet for newcomers to the Mark Probert seances and to spiritism and psychic research generally")

2nd printing Jan. 1952, 7x10 size, 26 pages.

4th printing, Jan. 1963, 8½x11 size, 24 pages.