A Startling Passage out of Peter Anson

GnosticVestments

“Gnostic Catholic” vestments from Third Republic France. Note in particular the episcopal vesture at right. (Source)

In Peter Anson’s remarkable volume, Bishops at Large: Some Autocephalous Churches of the Past Hundred Years and their Founders (1964), we learn of many episcopi vagantes and their kindred spirits. It seems that several of these strange fellows dabbled (or more than dabbled) in the occult. Many also coupled that occultism with an interest in ancient heresies, which they sought to resurrect. In a chapter on the succession from René Vilatte, we stumble across a shocking little paragraph:

Mgr. Giraud and most of the priests and layfolk of the Gallican Church, even if not Gnostics themselves, were closely associated with them. Gnosticism was very much in the air fifty or sixty years ago. Even the Benedictine monks of Solesmes felt it worth their while to study what are known as the ‘Magic Vowels’ used in Gnostic rites and ceremonies. In 1901 they published a book entitled Le chant gnostico-magique. (Anson 309)

What an extraordinary claim. The monks of Solesmes, Dom Prosper Gueranger’s own sons, publishing studies of Gnostic chants! Dear readers, do any of you have any information on this bizarre note? I have been able to find evidence, however scanty, that the book Anson mentions was indeed published. But it surely must count as one of the rarest volumes in the assembled miscellanea of liturgical history. I would appreciate any leads whatsoever. Might some of my liturgically minded friends have any clue? Whatever comes of it, there is no doubt a very interesting story lurking behind this utterly unique publication.