There can be no doubt that most, if not all, of the figures on this plate (Tro. 29) are intended to represent the injurious and destructive agencies to which maize and other cultivated plants were subject. Birds and quadrupeds pull up the sprouting seed and pull down and devour the ripening grain; worms gnaw the roots and winds break down the stalks, one out of four escaping injury and giving full return to the planter. The latter is therefore probably the correct interpretation, the only difficult feature being the presence of the Earth god, which agrees better with the first suggestion. It is to be observed that the series on Tro. 29c really commences with the right-hand group on 30c. The figure here holds in his hand an _ik_ symbol. Following this, the left group on 29c shows a bird pecking the corn; the next, a small quadruped tearing it down; the next, a worm gnawing at the root of a plant; and the fourth, or right-hand group, a corn figure holding a _kan_ symbol, indicating the mature grain, the uninjured portion of the crop. It would therefore appear that the _ik_ symbol in this series denotes wind. As additional proof that the symbol is used to indicate "wind," reference is made to Tro. 24a. Here the long-nose Rain god, or Maya Tlaloc, is seen amidst the storm, clothed in black and bearing on his arm a shield on which are two _ik_ symbols (plate LXIV, 33), doubtless indicative of the fierceness of the tempest. In front of him is the Corn god, bending beneath the pouring rain. On plate 25, same codex, lower division, the storm is again symbolized, and the _ik_ symbol is present here also. It seems from these facts to be quite certain that the value of the symbol in the codices, so far as it can be satisfactorily determined, corresponds in signification with the Maya name. Referring again to Dr Seler's theory that the plant-like figures on Tro. 15*, 16* indicate the freshly extracted heart and the vapor arising therefrom, the following additional items are noted: He says that in the text the scene below, or at least these sprouting-plant figures, are expressed by hieroglyphs 27-29, plate LXVIII. His comparison with the so-called heart figures from the Mexican codices can scarcely be regarded as convincing, for there is hardly any resemblance. Moreover, he omits to furnish an explanation, on his theory, of the fact that some of these rising "vapors" are crowned with blossoms or fruit (plate LXIV, 31). I think it quite probable that Dr Seler, although not accepting the theory of phoneticism, has been influenced to some extent by the form of the right-hand character of the glyph shown in plate LXVIII, 27. This is much like Landa's _o_, and _ol_ in Maya denotes "heart, etc."