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Though it is true that the form of these volumes, with their Prolegomena introductory chapters and Commentaries and numerous notes, is that of a technical treatise, it has nevertheless been my aim to make them throughout accessible to the general reader, even to the person who speaks only one language and who, though no scholar himself, may yet be deeply interested in such studies. These volumes must, therefore, naturally fall short of the precision enjoyed by the works of technical specialists which are filled with direct quotations from a number of ancient and modern tongues; on the other hand, they have the advantage of appealing to a larger public, while at the same time the specialist is given every indication for verifying the statements and translations.
Nor should the general reader be deterred by an introductory volume under the imposing sub-title of Prolegomena, imagining that these chapters are necessarily of a dull, critical nature, for the subjects dealt with are of immense interest in themselves (at least they seem so to me), and are supplementary to the Trismegistic sermons, frequently adding material of a like nature to that in our tractates.
Some of these Prolegomena have grown out of the Commentaries, for I found that occasionally subjects lent themselves to such lengthy digressions that they could be removed to the Prolegomena to the great advantage of the Commentary. The arrangement of the material thus accumulated, however, has proved a very difficult task, and I have been able to preserve but little logical sequence in the chapters; but this is owing mainly to the fact that the extant Trismegistic literature itself is preserved to us in a most chaotic fashion, and I as yet see no means of forcing any sure order into this chaos.