Meric Casaubon's 1659 A True and Faithful Relation of What Passed for Many Years Between Dr. John Dee and Some Spirits is the source through which The Seventh Call, like the rest of the Claves Angelicae, reached readers outside Dee's own household. Casaubon printed the angelic text beside Dee's English gloss, and it is that parallel printing, not a surviving independent manuscript, that has carried the sixteen elemental calls into every later edition.
The Golden Dawn's Enochian curriculum, documented in Israel Regardie's published editions of the order's teaching, drew on this middle group of sixteen calls for working the four Watchtowers ceremonially, a use several centuries removed from Dee's own sixteenth century sessions with Kelley. Later ceremonial interest in the Claves Angelicae has concentrated more heavily on the nineteenth call, the single text recited thirty times with the name of each Aethyr, popularized above all by Aleister Crowley's 1911 Vision and the Voice; The Seventh Call and its fifteen companion calls remain comparatively less written about in that later literature, tied instead to the elemental structure of the four Watchtowers rather than to the thirty Aethyrs.
No independent manuscript tradition exists to check Casaubon's transcription of The Seventh Call against, which is why every modern discussion of the call, this one included, ultimately rests on the same seventeenth century printing.