As the Egyptians, they wrote in vertical columns and horizontal lines, to be read generally from right to left. The space of this small essay does not allow me to enter in more details; they belong naturally to a work of different nature. Let it therefore suffice, for the present purpose, to state that the comparative study of the language of the Mayas led us to suspect that, as it contains words belonging to nearly all the known languages of antiquity, and with exactly the same meaning, in their mode of writing might be found letters or characters or signs used in those tongues. Studying with attention the photographs made by us of the inscriptions of Uxmal and Chichen, we were not long in discovering that our surmises were indeed correct. The inscriptions, written in squares or parallelograms, that might well have served as models for the ancient hieratic Chaldeans, of the time of King Uruck, seem to contain ancient Chaldee, Egyptian and Etruscan characters, together with others that seem to be purely Mayab. Applying these known characters to the decipherment of the inscriptions, giving them their accepted value, we soon found that the language in which they are written is, in the main, the vernacular of the aborigines of Yucatan and other parts of Central America to-day. Of course, the original mother tongue having suffered some alterations, in consequence of changes in customs induced by time, invasions, intercourse with other nations, and the many other natural causes that are known to affect man’s speech. The Mayas and the Egyptians had many signs and characters identical; possessing the same alphabetical and symbolical value in both nations. Among the symbolical, I may cite a few: _water_, _country or region_, _king_, _Lord_, _offerings_, _splendor_, the _various emblems of the sun_ and many others. Among the alphabetical, a very large number of the so-called Demotic, by Egyptologists, are found even in the inscription of the _Akabɔib_ at Chichen; and not a few of the most ancient Egyptian hieroglyphs in the mural inscriptions at Uxmal. In these I have been able to discover the Egyptian characters corresponding to our own.