Mysteries of the Rosie Cross: Now Available!
This work comes from a rather expansive (and otherwise mostly one-minded) collection of texts from the golden period of both real and quack-like academia involving occultism, from that special era in the 1890s; specifically, this is one of the better titles within the Phallism series that almost certainly was created by Hargrave at the time. Unlike most entries in that series, this one has nothing to do with symbology and everything to do with the Rosicrucians' own then-translated purported literary history, with some alchemy and other subjects tossed in. The only other entry in the series that deviates from that one taboo subject of reproductive spiritual material is Ophiolatreia (which I edited quite some time ago.)
It's quite good, actually, despite the fact that parts of it are a bit dense and difficult to fit into a linear sort of system; most of the content here was copied by the author verbatim into the work; some of that content is quite strange and fantastical, almost Atlantean. Nonetheless it is academically sound.