Let us accept these facts and see whether this picture for the symbol for copper does not return on other pages of the same Codex, and thereby gain more information on the subject. We notice the picture of the axe-blade reappearing on the pages 39 and 42. Both happen to bear the same number, that of figure 20, and both belong to the same section of the Codex which contains the pictures of the tributes paid by the conquered towns. Cut 5 is a reproduction of fig. 20, page 39, Codex Mendoza. It shows the metal axe without a handle hanging on a thread from a line upon which we see five flags are painted. Moreover, at the left side is a little picture. A flag in Mexican symbol writing signifies the number twenty.[7] [Illustration: CUT 5. Town of Chilapa. ] We may therefore conclude that by this combination one hundred copper axes are indicated. The question now arises, what city may have paid this tribute of copper axes? The painter has not only omitted to connect directly these flags and axe with one of the various coats of arms that are grouped in their neighborhood, but even, if he had done so, the student, still unacquainted with the art of explaining pictures, would be unable to make out the name of the city, embodied in the picture of the coat of arms. We will overcome this difficulty by consulting the interpretation of the Codex Mendoza, which is printed on the pages 39–89 of Vol. V., Kingsb. Collection. There, on page 73, the suggestion is given that the tribute objects refer to the town of Chilapa, whose coat of arms (fig. 2), as we shall notice on the cut, consists of a tub filled with water, and on whose surface the _chilli_-fruit appears, better known as the Spanish red pepper _chilli_, red pepper, _atl_, water, _pa_, in or above. For this reason we learn that the town of _Chilapa_ was tributary in 100 axes. [Illustration: CUT 6. Town of Chala. ] In like manner we may proceed with the definition of the picture found on page 42, fig. 20. The copy given in cut 6, shows 80 blades of copper axes in fig. 20, and besides 40 little copper bells in fig. 19, and the interpretation, Vol. V., page 76, informs us that it was the town of Chala, fig. 26, which had to pay this kind of tribute. Therefore, the towns of Tepoztla, Tepoztitla, Tepozcolula, and, besides, those of Chilapa and Xala, must be considered to have been connected, in one way or the other, with copper mining, copper manufacture, and the tribute of the same.[8]