8vo - 21 x 14 cm.; 96 pp. Red cloth over boards with black lettering on the spine. One of the "Mysterium Salutis" series from this publisher and edited by Johannes Feiner, Magus Lohrere and Thomas F. O'Meara. O'Meara has written a 4+ page introduction for this particular volume. The library markngs are a bookplate on the front paste down end paper, a label ghost on the lower spine and the library name stamped on the fore edge of the text block. Otherwise clean with a sound bnding, showing little wear except for the spine being a tad faded.