This was the first of Lévi's books to be translated into
English.
The original French version was published in 1856.
This translation (by an unknown hand) was first published in 1883
by the Theosophical Society, and
re-issued in 1922, with additional extensive footnotes
by 'an Eminent Occultist' (herein, E.O.).
The identity of E.O. is unknown, but it is believed from the style
and views expressed that it was none other than Helena P. Blavatsky.