This illustration serves to show what seems to me an essential preliminary of the work we have in hand, and the part to which I have so far devoted most effort. The glyphs must be determined, compared and classified, and what I have called the “syntax” of their composition, studied. The particles and their positions, the various _incorporated_ elements, are of the utmost importance, though they are very frequently ignored. _They are the written picture of the spirit of the spoken language._ The task I have most looked forward to in this connexion has of course been with the Dresden, but having started upon the Perez for the reasons I have given, it was a smaller task in itself, and could be brought to completion within less time, while serving as part of the larger work. As the determination and classification of the glyphs had to proceed all as one work, it has enabled me not only to complete my Index for this codex, but also to print the text in type, and to verify and bring out such facts regarding the color questions as was possible to do--both of them stages needed in the general work. In doing it I have studied with my hands as well as with eyes, and I have been well repaid. The actual labor has not been small, but it has been worth it all if only to see before the eyes something of what this Codex must have been when fresh and new. For as I have said, while in my colored restoration I may have made some mistakes of eye, for which the photographs will be a check, I have _guessed_ nothing. The classification of the glyphs meets of course with some difficulties in detail, but it can readily be cast into a quite simple general outline. Something over 2000 different compound forms are found in the three codices. The simple elements composing these are perhaps 350 in number, and may be divided broadly into main elements and affixes or particles. First of course come day and month signs, which, with _kin_, _tun_, _kal_, and a few marked variants, use up 50 numbers. Next will come the faces, about 75 simple elements. Next the animal and bird heads and figures, about 50 numbers. Next the hands, crosses, etc., and the list of conventional or geometric forms, another 75. Then some 75 particles.