In our books on "Occult Philosophy" we have set forth in detail and accurately the origin of Magic, its rational basis, the means of selecting and collecting what has been tried to obtain amazing results. But more theoretically than practically, some points are not fully explained there, others are expressed in an allegorical or mysterious form. Finally, the knowledge that we achieved through deep study and diligent research was presented by us to persons uninitiated in this knowledge. That is why in this work, which constitutes the supplement and key to “Occult Philosophy” and to all magical operations, we give very interesting experiments and documents of irrefutable truth, indisputable magical laws and sacred power.